[ { "image": [ "000_Alum_adsorption.jpg" ], "question": "Assume both beakers were initially filled with pure water at 20 °C, and the two white powders added have exactly the same mass. Now, if a laser beam is sent horizontally through the clear upper layer of liquid in each beaker, in which beaker will the light path be more clearly visible?\nA. The left beaker\nB. The right beaker\nC. Both are clearly visible\nD. Neither is visible", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows two beakers being compared before and after a period of time.\n2. The Chinese text \"一段时间后\" indicates the right side of the image shows the beakers \"after a period of time\".\n3. In the beaker on the left (after time has passed), a large amount of white solid has settled at the bottom.\n4. In the beaker on the right (after time has passed), there is no significant amount of settled solid at the bottom.\n5. The liquid in both beakers is a translucent yellow color.\n6. In the initial state, a person is stirring the contents of both beakers with glass rods." }, { "image": [ "002_annual_ring.png" ], "question": "If you plant a mature sunflower in the place where the object shown in the photo once grew, which direction is its flower head most likely to face?\nA. Toward the lower-right corner of the image\nB. Toward the upper-left corner of the image\nC. Fixed facing due east from the observer’s viewpoint\nD. Pointing straight up toward the sky", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The image displays a cross-section of a tree trunk, showing its growth rings.\n2. The center of the growth rings is not in the geometric center of the trunk slice; it is offset toward the upper-left.\n3. The growth rings are visibly wider and more spaced out on the side of the trunk corresponding to the lower-right of the image.\n4. The growth rings are narrower and more compressed on the side of the trunk corresponding to the upper-left of the image." }, { "image": [ "004_ball_lever_principle.png" ], "question": "Assume the two spheres in the picture (A is the large sphere on the left, B is the small sphere on the right) are removed. Now there are several new pairs of spheres. If each pair is placed at the original positions of A and B respectively, which pair will keep the wooden board in the same static (at-rest) state as shown?\nA. Sphere A: 50 kg, Sphere B: 50 kg\nB. Sphere A: 200 kg, Sphere B: 10 kg\nC. Sphere A: 10 kg, Sphere B: 200 kg\nD. Sphere A: 50 kg, Sphere B: 5 kg", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A wooden board is balanced on a purple triangular fulcrum, acting as a lever.\n2. The board is horizontal, indicating it is in a state of equilibrium.\n3. A large white sphere on the left side of the fulcrum is labeled \"100 kg\".\n4. A small white sphere on the right side of the fulcrum is labeled \"5 kg\".\n5. The 100 kg sphere is positioned very close to the fulcrum.\n6. The 5 kg sphere is positioned at the far right end of the board, much farther from the fulcrum than the 100 kg sphere.\n7. The wooden board has evenly spaced markings along its length." }, { "image": [ "006_beer_cap_lever_principle.jpg" ], "question": "If the same prying method is applied to a sealed container where the direction of the internal–external pressure difference is opposite to that in the current scenario (with identical geometry and material conditions), how would the required external force change—relative to the current scenario—to achieve the same small opening displacement?\nA. Increase significantly\nB. Decrease significantly\nC. Remain roughly unchanged\nD. Increase first and then decrease", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A person is using a pair of chopsticks to pry open a bottle.\n2. The bottle is a green glass bottle with a silver metal crown cap.\n3. The text on the cap includes \"TSINGTAO\" and \"青岛啤酒\", which identifies the content as beer.\n4. The chopsticks are positioned as a lever, with one end under the cap's edge and a finger knuckle acting as the fulcrum." }, { "image": [ "011_bottle_submarine.jpg" ], "question": "Heat the entire system shown in the diagram (the liquid is compatible with the container material and the seal is good), keeping all other conditions the same. To keep the small object inside at its original suspended height, how should you adjust your hand operation?\nA. Decrease the squeezing\nB. Keep it roughly unchanged\nC. Increase the squeezing\nD. Simply flip it quickly upside down and back", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A small brown vial is inside a larger clear plastic bottle.\n2. The plastic bottle is filled with a clear liquid, likely water.\n3. The bottle is sealed with a green cap.\n4. A hand is shown squeezing the flexible plastic bottle.\n5. When the bottle is not squeezed hard or at all, the vial floats near the top.\n6. When the bottle is squeezed, the vial sinks.\n7. The vial is positioned upside down, with its opening at the bottom, allowing it to trap air.\n8. In the last frame, the vial is suspended in the middle of the liquid, indicating a state of neutral buoyancy achieved by a certain amount of squeezing." }, { "image": [ "013_camphor_pellet_sublimation.jpg" ], "question": "Place the white solid shown in the image into a rigid, sealed container (initially filled with dry air; temperature and volume remain constant). After letting it sit for a while, how is the total pressure inside the container most likely to change relative to the initial value?\nA. Increase to a stable value\nB. Decrease\nC. Remain essentially unchanged\nD. Fluctuate up and down periodically", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The image shows three white, solid, tablet-shaped objects.\n2. The objects resemble common mothballs or camphor tablets.\n3. The objects are placed on a surface." }, { "image": [ "015_candle_never_go_out.jpg" ], "question": "Why doesn't the candle extinguish? Please answer the question within 15 words.", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "The candle is outside the cup, not inside.", "clues": "1. A lit red candle is standing outside a transparent glass.\n2. A hand is pouring a clear liquid from a plastic pitcher into the glass.\n3. The sequence of four images shows the level of the clear liquid rising in the glass.\n4. The candle flame remains lit throughout the process of the liquid level rising.\n5. In the later images, the water level is visibly higher than the base of the flame.\n6. The flame appears to be burning on the surface of the liquid in the glass." }, { "image": [ "018_chopsticks_light_travels_in_straight_line.png" ], "question": "Keeping the observation position and the way you move the tool unchanged, replace the transparent liquid in the cup with a liquid of higher refractive index (all other conditions the same). To make a straight rod inserted from air accurately touch a small target on the bottom of the cup, compared with your original method, how should you adjust the amount of vertical correction?\nA. Decrease the downward correction\nB. Switch to an upward correction\nC. Increase the downward correction\nD. No correction needed", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A straight, dark-colored rod is placed in a clear glass filled with a transparent liquid.\n2. The rod enters the liquid at an angle.\n3. The part of the rod that is submerged in the liquid appears bent upwards relative to the part that is in the air.\n4. The submerged part of the rod appears to be at a shallower depth than a straight continuation of the part in the air would suggest." }, { "image": [ "019_cloth_sublimation.png" ], "question": "If the sun keeps rising and the air temperature climbs well above 0 °C, what is the most likely immediate change to the object on the left side of the image?\nA. The solid water inside it will sublimate directly into water vapor.\nB. It will collapse due to losing internal support.\nC. Its color will quickly fade because of prolonged sunlight.\nD. It will topple over as the snow at its base melts.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A dress is standing upright in a field covered with snow.\n2. The dress is not being worn by a person or supported by a visible mannequin or wires.\n3. The fabric of the dress appears stiff and holds a three-dimensional shape, including the sleeves and the full skirt.\n4. The setting is a winter landscape with snow on the ground and on the trees in the background, indicating freezing temperatures.\n5. The dress is positioned as if it is standing on its own on the surface of the snow." }, { "image": [ "020_cloud_mirage_sea.png" ], "question": "Keeping the observation point and the target fixed, the near-sea surface air is heated by sunlight until its temperature exceeds that of the layer above (other conditions approximately unchanged). What change is most likely in the target’s apparent vertical position at a distance?\nA. Rises significantly\nB. Drops noticeably, possibly even disappearing from view\nC. Remains roughly unchanged\nD. Splits into multiple images", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A large body of water is visible in the lower half of the image.\n2. A thick, white layer of fog or cloud is present horizontally across the middle of the image, above the water.\n3. The top section of a building with a grid-like structure is seen protruding from the top of the fog layer.\n4. The lower part of the building is not visible, as it is obscured by the fog." }, { "image": [ "021_coin_light_refraction.jpg" ], "question": "Keeping the observer and the cup in the same positions, only replace the transparent liquid to be poured into the cup from pure water to glycerol (all other conditions the same). To make a previously invisible small target at the bottom of the cup appear in view for the first time, how will the minimum required liquid level change compared with using water?\nA. A higher liquid level is needed\nB. Roughly unchanged\nC. A lower liquid level is needed\nD. Determined only by the target’s size and unrelated to the liquid being poured", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A sequence of four images shows a white mug against a black background.\n2. In the first two images, a coin is shown falling into the mug.\n3. In the third image, the mug is empty, and the bottom of the mug is not visible from the camera's angle.\n4. In the fourth image, the mug contains a transparent liquid, and the coin is now visible at the bottom.\n5. The visibility of the coin at the bottom of the mug is dependent on the presence of a liquid inside it." }, { "image": [ "021_coin_light_refraction.jpg" ], "question": "Keeping the observer and the cup geometry unchanged, only replace the transparent liquid to be poured into the cup. To make a previously invisible small target inside the cup become visible for the first time with the minimum liquid level, which of the following replacements is most suitable?\nA. Glycerol\nB. Ethanol\nC. Acetone\nD. Physiological saline (saline solution)", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A sequence of four images shows a white mug against a black background.\n2. In the first two images, a coin is shown falling into the mug.\n3. In the third image, the mug is empty, and the bottom of the mug is not visible from the camera's angle.\n4. In the fourth image, the mug contains a transparent liquid, and the coin is now visible at the bottom.\n5. The visibility of the coin at the bottom of the mug is dependent on the presence of a liquid inside it." }, { "image": [ "022_connected_vessels.jpg" ], "question": "Assuming all channels are airtight (no gas leakage) and completely filled with the same liquid, the rightmost cup—together with the liquid inside it—is raised as a whole by a fixed height (the other cups stay where they are). After the system is left to settle to equilibrium, how will the heights of the five liquid surfaces most likely compare relative to the tabletop?\nA. Only the rightmost one is higher; the others are unchanged.\nB. Each rises by the same amount relative to its own cup bottom.\nC. They remain at nearly the same height.\nD. They form a sawtooth pattern, depending on the connection order.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. There are five transparent glasses arranged in a line.\n2. The glasses contain a blue liquid.\n3. Orange, flexible straws connect each adjacent pair of glasses.\n4. The straws are bent over the rims of the glasses, with one end in the liquid of one glass and the other end in the liquid of the next, forming siphons.\n5. In the top image, the liquid level in the rightmost glass is lower than in the other four glasses.\n6. In the bottom image, the liquid levels in all five glasses are approximately the same." }, { "image": [ "024_convex_lens_or_concave_lens.jpg" ], "question": "For someone who needs these glasses to achieve their best vision, when reading a book with standard-sized print without wearing the glasses, which behavior are they most likely to adopt?\nA. Hold the book much farther from the eyes than a normal reading distance.\nB. Hold the book very close to the eyes to see clearly.\nC. Make sure to read in a well-lit environment to protect their eyesight.\nD. Frequently alternate between using the left eye and the right eye for monocular reading.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A pair of glasses is held over a paved surface.\n2. The glasses cast a shadow on the ground, indicating a bright light source (the sun).\n3. The light passing through the lenses is focused into bright spots on the ground.\n4. The glasses have clear lenses and red temples." }, { "image": [ "025_tyre.png" ], "question": "If these two types of tires are installed on the front and rear axles of the same car respectively, which end is more likely to skid first when the vehicle makes an emergency stop on an icy and slippery road?\nA. Front end\nB. Rear end\nC. Neither will skid\nD. Both ends will skid simultaneously", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image displays two different car tires mounted on wheels.\n2. The tire on the left has a tread pattern with numerous small grooves and cuts (sipes) within the larger tread blocks.\n3. The tire on the right has a tread pattern with large, solid tread blocks and wide circumferential grooves, with few or no sipes.\n4. A magnified view of the left tire's tread shows many wavy sipes and a complex block pattern.\n5. A magnified view of the right tire's tread shows smooth, large tread blocks." }, { "image": [ "026_curved_water_column.jpg" ], "question": "If the faucet in the bottom panel is replaced with one that dispenses a neutral, non-polar oil, and the same operation is repeated, what is the most likely observed phenomenon?\nA. The oil stream will be repelled and deflect away from the pink object.\nB. The oil stream will deflect more strongly than in water.\nC. The oil stream will not deflect at all and will fall straight down.\nD. The oil stream will break up and fall as droplets.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A pink comb is being rubbed by a piece of light-colored, furry fabric held by a hand.\n2. A thin stream of liquid is flowing downwards from a metal faucet.\n3. The pink comb is held close to the stream of liquid.\n4. The stream of liquid is visibly curved, bending towards the pink comb.\n5. The background shows a kitchen counter with plants, a wine bottle, and a soap dispenser." }, { "image": [ "027_dancer_mung_bean.jpg" ], "question": "Seal the opening of the beaker instantly with a completely airtight lid. How will the pressure inside the beaker change over the next short period of time?\nA. The internal pressure will decrease significantly.\nB. The internal pressure will increase significantly.\nC. The internal pressure will remain essentially unchanged.\nD. The internal pressure will eventually match the external atmospheric pressure.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a sequence of actions involving a beaker, a liquid, green beans, and a white powder.\n2. A white powder is added to a beaker containing liquid and green beans.\n3. After the powder is added, numerous gas bubbles form in the liquid.\n4. The green beans, which were previously at the bottom, are seen floating and suspended in the liquid due to the bubbles.\n5. The formation of bubbles indicates a gas is being produced by a chemical reaction.\n6. The image displays a chemical experiment in a glass beaker over three stages.\n7. In the final stage, a white powder is being added to the beaker.\n8. Following the addition of the powder, a large number of bubbles are visible throughout the liquid.\n9. The green beans are shown suspended in the liquid and rising, which is caused by the bubbles attaching to them.\n10. The presence of vigorous bubbling indicates that a gas is being produced as a product of a chemical reaction." }, { "image": [ "029_deceptive_bird.png" ], "question": "Assuming the organism remains completely motionless, which of the following newly introduced predators would pose the most fundamental threat to its survival?\nA. A predator with an extremely keen sense of smell that can track scents\nB. A predator with thermal-imaging vision that can detect infrared radiation\nC. A very fast-flying predator adept at aerial ambushes\nD. A predator with acute hearing that can localize the faintest sounds", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. There is a bird positioned vertically in a hollow or crevice of a tree trunk.\n2. The bird's feathers are patterned with shades of grey, brown, and black.\n3. The color and pattern of the bird's feathers closely resemble the color and texture of the surrounding tree bark.\n4. The tree bark is greyish-brown, with cracks and rough textures.\n5. There are patches of yellow-green moss or lichen on the tree." }, { "image": [ "030_deceptive_raptor.png" ], "question": "Assuming the organism remains completely motionless, which of the following newly introduced predators would pose the most fundamental threat to its survival?\nA. A predator with an extremely keen sense of smell that can track scents\nB. A predator with thermal-imaging vision that can detect infrared radiation\nC. A very fast-flying predator adept at aerial ambushes\nD. A predator with acute hearing that can localize the faintest sounds", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A bird is present in the image, positioned among rocks.\n2. The bird's feathers have a mottled pattern of white, black, and brown.\n3. The bird's coloration and pattern closely match the appearance of the surrounding lichen-covered rocks.\n4. The background consists of rocks and green and brown vegetation on a hillside.\n5. The bird is partially obscured by the rocks it is nestled between." }, { "image": [ "030_deceptive_raptor.png" ], "question": "If you switch to long-wave infrared imaging (a thermal camera) and observe the same scene at the same distance and resolution, how is the target’s detectability in the image most likely to change?\nA. Remains roughly unchanged\nB. Decreases significantly\nC. Increases significantly\nD. Cannot be determined", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A bird is present in the image, positioned among rocks.\n2. The bird's feathers have a mottled pattern of white, black, and brown.\n3. The bird's coloration and pattern closely match the appearance of the surrounding lichen-covered rocks.\n4. The background consists of rocks and green and brown vegetation on a hillside.\n5. The bird is partially obscured by the rocks it is nestled between." }, { "image": [ "031_density.png" ], "question": "Both cups are placed simultaneously in a constant −5 °C environment. After fully reaching thermal equilibrium, which outcome is most likely?\nA. The left cup freezes solid; the right cup remains liquid.\nB. The right cup freezes solid; most of the left cup stays liquid.\nC. Both cups are completely frozen.\nD. Water freezes at 0 °C, so at −5 °C both would have long since frozen solid.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. There are two glasses of clear liquid, each with an egg inside.\n2. The egg in the left glass is suspended in the liquid.\n3. The egg in the right glass is at the bottom of the glass.\n4. There is a layer of white, undissolved solid at the bottom of the left glass." }, { "image": [ "031_density.png" ], "question": "A narrow visible-light beam is sent into each cup through the side wall at the same angle of incidence. On the outside of the opposite wall, you record the lateral offset between the beam’s exit point and the straight-line extension of the incident beam in air. Which cup shows the larger offset?\nA. Left cup\nB. Right cup\nC. The same\nD. Cannot be determined", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. There are two glasses of clear liquid, each with an egg inside.\n2. The egg in the left glass is suspended in the liquid.\n3. The egg in the right glass is at the bottom of the glass.\n4. There is a layer of white, undissolved solid at the bottom of the left glass." }, { "image": [ "032_disappeared_coin.jpg" ], "question": "Why is the coin on the right different from the one on the left when equal amounts of water are poured into the cups? Please explain this phenomenon in no more than 15 words.", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "The coin is outside the cup, not inside.", "clues": "1. The image is a composite, showing two cups before and after a clear liquid is added.\n2. Before the liquid is added, two identical coins are visible at the bottom of two transparent cups.\n3. After the liquid is added, both cups are filled to a similar level.\n4. In the left cup with liquid, the coin is visible and appears magnified.\n5. In the right cup with liquid, the coin is not visible." }, { "image": [ "033_dissolved_eggshells.jpg" ], "question": "Both beakers are placed simultaneously into a pressure chamber. After the ambient pressure rapidly increases by 0.5 atm and is held for a few seconds, in which beaker is the egg’s downward displacement more pronounced?\nA. Left beaker\nB. Right beaker\nC. The same\nD. Cannot be determined", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows two beakers, each containing an egg in a clear liquid.\n2. In the beaker on the left, the egg is resting on the bottom.\n3. In the beaker on the right, the egg is suspended in the middle of the liquid, not touching the bottom.\n4. The surfaces of both eggs are covered in many small bubbles." }, { "image": [ "034_drill_wood_to_make_fire.png" ], "question": "Except for dry wood, which combination of the three substances—alcohol, potassium permanganate, and sugar—would most likely result in the ignition phenomenon shown in the image?\nA. Alcohol + Sugar\nB. Potassium permanganate + Alcohol\nC. Potassium permanganate + Sugar\nD. Only sugar or only alcohol", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A vertical stick is in contact with a horizontal log.\n2. There is fire, smoke, and sparks at the point of contact between the stick and the log.\n3. The wood around the point of contact is blackened and charred.\n4. The arrangement of the stick and log resembles a friction fire starter, such as a hand drill or bow drill, where a spindle is rotated on a fireboard.\n5. The scene is dark, highlighting the fire as the main source of light." }, { "image": [ "036_electrification_friction.jpg" ], "question": "If a person slowly brings their finger close to the translucent object at the top of the image, what is the most likely immediate consequence?\nA. A small visible electric spark may occur between the finger and the object.\nB. The object will permanently adhere to the finger due to van der Waals forces.\nC. The finger will feel noticeably wet because condensation occurs on the object’s surface.\nD. The cellulose material that makes up the colored fragments is biodegradable under natural conditions.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The image is a side-by-side comparison of two moments in time.\n2. In the left frame, numerous small, multi-colored paper fragments are lying flat on a white plate.\n3. A translucent object is visible above the plate in both frames.\n4. In the right frame, the paper fragments are shown in mid-air, moving upwards from the plate towards the translucent object.\n5. Some of the paper fragments are attached to the bottom surface of the translucent object in the right frame." }, { "image": [ "037_eraser_long_ruler.png" ], "question": "Keep the combined setup shown in the picture undisturbed for half a month. Afterwards, when looking at the text in the book through the area of the ruler that had been in contact with the eraser, what are you most likely to see?\nA. Exactly the same as through other parts of the ruler—the text is clear.\nB. That area has become completely opaque, and no text can be seen.\nC. The text appears significantly magnified, as if viewed through a magnifying glass.\nD. The transparency of that area has decreased, and the text appears blurry.", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. A transparent plastic ruler is being held.\n2. A light-colored, rectangular eraser is placed on top of the ruler.\n3. The eraser is in direct physical contact with the surface of the ruler.\n4. The ruler has numbered markings and lines for measurement.\n5. The area of the ruler under the eraser is currently clear and transparent." }, { "image": [ "040_finger_water_to_ice.jpg" ], "question": "If a thermal camera records the entire process at a constant frame rate, what feature is most likely to appear in the liquid’s temperature field at the instant the transition occurs?\nA. A rapid temperature rise first appears near the contact point, then the “hot zone” spreads outward, and over tens of seconds the overall temperature slowly falls back.\nB. A rapid cooling appears first and then spreads outward.\nC. The temperature remains essentially unchanged.\nD. Only the cup wall warms while the liquid’s temperature stays unchanged.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The left image shows a clear, transparent liquid in a glass.\n2. The right image shows a white, crystalline, solid-like substance forming inside the same glass of liquid.\n3. A finger is shown touching the surface of the liquid in the right image.\n4. The formation of the white substance originates from the point where the finger touches the liquid surface.\n5. The white substance appears to be spreading downwards and outwards from the point of contact." }, { "image": [ "041_fish_tank_light_travels_in_straight_line.png" ], "question": "If an apple snail is placed in this device, over the long term, which change is most likely to occur to its shell?\nA. The shell will thicken more rapidly due to mineral intake.\nB. A layer of green algae will quickly adhere to the shell surface.\nC. The shell’s color will turn a bright blue.\nD. The shell will gradually be eroded and become thinner.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The water in the tank has a yellowish-brown tint.\n2. There are pieces of driftwood within the aquarium.\n3. There are dried leaves on the substrate at the bottom of the tank." }, { "image": [ "045_frozen_noodles.png" ], "question": "At this location, if you throw equal volumes of pure water and 95% ethanol into the air in the same manner at the same temperature (room temperature), which one is more likely to exist mainly as solid particles before hitting the ground?\nA. Only the latter\nB. Only the former\nC. Both will\nD. Neither will", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The landscape is entirely covered in deep snow.\n2. There are two bowls containing noodles sitting on the snow.\n3. Noodles are lifted from the bowls by utensils and are suspended in the air.\n4. The suspended noodles are stiff and appear frozen solid, holding their shape against gravity.\n5. Trees in the distant background are laden with snow or frost." }, { "image": [ "046_glass_change_color.jpg" ], "question": "Place the same device under four light sources with equal illuminance and irradiate continuously for 2 minutes. In which scenario will its visible-light transmittance be the lowest?\nA. High-CRI indoor LED\nB. Quartz mercury lamp\nC. Halogen incandescent lamp\nD. Near-infrared heating lamp", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image contains two panels, showing the same pair of sunglasses in what appears to be two different states.\n2. In the top panel, the lenses of the sunglasses are light gray and relatively transparent.\n3. In the bottom panel, the lenses of the sunglasses are a much darker gray/purple and are less transparent.\n4. The frame of the sunglasses is dark and glossy.\n5. A \"T\" shaped logo is visible on the hinge of the sunglasses' temple.\n6. A bright, starburst-shaped reflection of a light source is visible on the right lens in both panels." }, { "image": [ "047_greater_airflow_lower_pressure.jpg" ], "question": "While keeping the operation of “blowing from the open end” unchanged, which modification would most improve the success rate of a small clump entering the device?\nA. Increase the airflow speed\nB. Decrease the clump’s mass\nC. Add a small hole at the end far from the opening\nD. Coat the inner wall with a layer of liquid", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image is a diptych showing a clear plastic bottle on a green surface.\n2. In the left panel, a small crumpled red paper ball is positioned at the mouth of the bottle.\n3. The bottle is lying on its side.\n4. In the right panel, the red paper ball is shown in motion, moving away from the bottle's opening.\n5. A blurry white tube, possibly a straw, is visible behind the moving paper ball in the right panel, suggesting air is being blown.\n6. The bottle has a red plastic ring around its neck, below the threads." }, { "image": [ "049_hot_air_balloon.png" ], "question": "Replace the device’s upper flexible component with one of the same size and mass but made of thin aluminum foil, keeping all other conditions unchanged. How will the system’s maximum load-bearing mass change relative to the original?\nA. Increase\nB. Decrease\nC. Remain essentially unchanged\nD. Mainly depends on ambient humidity; cannot be determined", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A lit matchstick with a visible flame is positioned vertically inside a badminton shuttlecock.\n2. The shuttlecock has a cork base and a cage-like structure made of what appears to be wood or feathers.\n3. Two light blue surgical-style face masks are attached to the top of the shuttlecock's cage.\n4. The masks are arranged to form an open-bottomed envelope or canopy above the flame.\n5. The ear loops of the masks are used to secure them to the shuttlecock structure.\n6. The entire assembly is resting on a flat, dark surface against a plain, light-colored background.\n7. A lit matchstick is placed inside a badminton shuttlecock, providing a flame.\n8. Two surgical face masks are attached to the shuttlecock, forming an envelope above the flame.\n9. The flame from the match is positioned to heat the air contained within the masks.\n10. The entire object is constructed to resemble a miniature hot air balloon, with the shuttlecock as the basket and the masks as the balloon envelope." }, { "image": [ "051_ignited_ethanol.jpg" ], "question": "If, immediately after the final state occurs, someone performs electric welding directly above the container’s opening, what is the most likely immediate consequence?\nA. Generation of intense arc light harmful to the naked eye.\nB. Instant combustion of the localized gases above the container opening.\nC. Causing the liquid in the container to boil and splatter.\nD. The welding equipment short-circuits due to unknown gases.", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The first panel shows an unlit match with a red tip being held by a hand over a container of clear liquid.\n2. The second panel shows a hand holding a device resembling an electric arc lighter over the liquid, and a ripple is visible on the liquid's surface.\n3. The third panel shows the same match, now ignited with a flame, being held in the same position over the liquid.\n4. The match in the third panel is burning, indicating the presence of a flammable substance or condition that caused its ignition." }, { "image": [ "054_lemon_juice_gives_color.jpg" ], "question": "Assuming this sheet of paper is left for a long time in a warm, humid basement, which area is most likely to develop visible mold first?\nA. The blank areas of the paper\nB. The areas forming the gold-colored characters\nC. All parts of the paper will mold at the same rate\nD. It won’t mold because the heating process already sterilized the paper.", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a white piece of paper with four golden-brown Chinese characters (\"新年快乐\") on it.\n2. The characters have a different color and texture from the rest of the white paper.\n3. A comparison between the left and right panels shows that the characters were initially faint or invisible and then became visible, suggesting they were revealed by a process like heating.\n4. The substance forming the characters is likely an organic compound (like sugar or lemon juice) used as invisible ink, which serves as a rich food source." }, { "image": [ "054_lemon_juice_gives_color.jpg" ], "question": "Mark four points at equal distances along the bottom edge of the paper in the horizontal direction: A (leftmost), B, C, and D (rightmost). Maintain the same procedure and rhythm as shown in the diagram, and continue applying the heat source until the entire paper undergoes the same process. If a heat-sensitive sealing wax with the same melting point is placed at these four points, which one will melt last?\nA. Point A (leftmost)\nB. Point B (slightly left)\nC. Point C (near the center)\nD. Point D (rightmost)", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The image shows a white piece of paper with four golden-brown Chinese characters (\"新年快乐\") on it.\n2. The characters have a different color and texture from the rest of the white paper.\n3. A comparison between the left and right panels shows that the characters were initially faint or invisible and then became visible, suggesting they were revealed by a process like heating.\n4. The substance forming the characters is likely an organic compound (like sugar or lemon juice) used as invisible ink, which serves as a rich food source." }, { "image": [ "055_lever_duck.jpg" ], "question": "Assume the people on the left and right sides of the image each repeat the action of “grip-and-release” of the yellow object 1,000 times. Based on the physics principles illustrated, in which case is the tool more likely to break first?\nA. The left-hand scenario\nB. The right-hand scenario\nC. Both have the same likelihood of breaking\nD. Neither will break, because the yellow object is too light for the tool", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image is split into two scenarios, labeled left and right.\n2. In the left scenario, a person's hand holds two long sticks close to a yellow object they are gripping.\n3. In the right scenario, the hands holding the two long sticks are at the far end, distant from the yellow object.\n4. In the right scenario, the two long sticks are visibly bending downwards due to the weight of the yellow object.\n5. In the left scenario, the two long sticks appear relatively straight.\n6. A chalkboard in the background shows the physics formula for levers: F₁L₁ = F₂L₂.\n7. A screen in the background shows a diagram of a hand holding chopsticks, illustrating the parts of a lever system." }, { "image": [ "057_light_beer_bottle_cap.png" ], "question": "Given that only the top region can be treated briefly, which type of contents is most likely to jet out uncontrollably when opened afterward?\nA. High-viscosity syrup\nB. Pure water\nC. Carbonated beverage\nD. Nitrogenated coffee with no free carbon dioxide", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A person is holding a green glass bottle.\n2. The label on the bottle identifies it as \"LAOSHAN BEER\".\n3. A person is holding a lit lighter.\n4. The flame of the lighter is directed at the metal cap of the beer bottle.\n5. The bottle is sealed with a crimped metal cap." }, { "image": [ "058_light_scattering.jpg" ], "question": "Without changing the light source’s power or illumination method, if you want the inside of the container to appear almost unlit (the light path is hard to perceive), which treatment should be prioritized?\nA. Filter the liquid through a 0.2 μm microporous membrane.\nB. Gently heat the liquid to about 40 °C.\nC. Add a small amount of table salt and dissolve it completely.\nD. Give the liquid a light stir.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A transparent container is filled with a liquid.\n2. A pink, horizontal line of light passes through the liquid in the container.\n3. The path of the light beam is visible inside the liquid, indicating light scattering.\n4. The liquid itself appears clear, suggesting the scattering particles are microscopic (colloidal).\n5. A person in a white and blue shirt is in the background, out of focus." }, { "image": [ "059_light_shift.png" ], "question": "Suppose the liquid in the image is divided equally into two portions and filtered using two different devices. Device A uses ordinary filter paper with a pore size of 10 micrometers (μm), while Device B uses a semipermeable membrane with a pore size of 5 nanometers (nm). Regarding the two resulting filtrates, which statement is correct?\nA. The filtrate from Device A is clear and transparent, while the filtrate from Device B still shows a visible light-beam path.\nB. With both devices, the filtrates no longer show a clear light-beam path.\nC. The filtrate from Device A still shows a visible light-beam path, whereas the filtrate from Device B does not.\nD. Regardless of which device is used, the freezing point of the filtrate will be significantly higher than that of the liquid before filtration.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image shows a bright blue sky.\n2. There are white clouds visible in the sky.\n3. The scene is outdoors during the daytime, illuminated by the sun.\n4. A sundial is in the foreground, which relies on sunlight passing through the atmosphere to function." }, { "image": [ "059_light_shift.png" ], "question": "If you need to use solar energy at this moment, which action is the most efficient?\nA. Point the collector toward the southwest.\nB. Point the collector toward the southeast.\nC. Place the collector horizontally.\nD. Wait until exactly 12:00 local time to start collecting.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a stone sundial with a gnomon (a central pin).\n2. The gnomon is casting a shadow on the face of the sundial.\n3. The shadow is pointing towards the left side of the sundial's face.\n4. The right side of the sundial is illuminated by bright light.\n5. The buildings in the background are also lit from the right, with shadows cast to the left.\n6. The setting appears to be outdoors during the daytime, under a blue sky with clouds." }, { "image": [ "060_light_travels_in_straight_line.png" ], "question": "Assuming an absolutely dry environment in the center of the Sahara Desert with the same temperature and atmospheric pressure as in the image, if a tuning fork is struck at the sound source in both places at the same time, in which environment would a distant observer hear the sound first?\nA. In the environment shown in the image\nB. In the Sahara Desert environment\nC. They would be heard at the same time in both environments\nD. Cannot be determined, because sound speed is also affected by altitude", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A stream of water is flowing over rocks in the foreground and middle ground.\n2. The scene is a dense forest with numerous trees with green leaves.\n3. There is lush green vegetation and undergrowth on the banks of the stream and throughout the forest floor.\n4. Beams of sunlight are visible passing through the tree canopy, indicating the presence of atmospheric particles like mist or water vapor that scatter the light.\n5. Rocks in and near the stream appear wet and some are covered in what looks like green moss." }, { "image": [ "061_magenta_diffusion_speed.jpg" ], "question": "Treat the four vertically arranged images on the left as “Process One,” and the four vertically arranged images on the right as “Process Two.” If a goldfish is placed into the beaker at the starting state of each process, and ignoring any toxicity of the dye, in which beaker would the goldfish obtain more dissolved oxygen?\nA. In the beaker of “Process One”\nB. In the beaker of “Process Two”\nC. There is no significant difference in dissolved oxygen between the two beakers\nD. The addition of dye would first deplete the dissolved oxygen in the beaker of “Process Two.”", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The images in the right column (\"Process Two\") show condensation (small water droplets) on the upper, outer surface of the beaker.\n2. The images in the left column (\"Process One\") do not show any condensation on the beaker.\n3. In \"Process One\", the pink dye diffuses slowly and tends to sink to the bottom of the beaker.\n4. In \"Process Two\", the pink dye diffuses rapidly and turbulently, quickly mixing with the entire volume of water.\n5. In the final frame of \"Process One\", the water is not uniformly mixed; a concentrated layer of red dye is at the bottom.\n6. In the final frame of \"Process Two\", the water is uniformly mixed and has a consistent pink color throughout." }, { "image": [ "063_maillard_reaction.png" ], "question": "Under identical heating methods and durations, if you first add one of the following additives at the same volume fraction to the same liquid, which treatment is most likely to produce the weakest color change after heating?\nA. Vegetable oil\nB. Baking soda solution\nC. Saline (salt water)\nD. Lemon juice", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. A person is using a blowtorch with a visible flame.\n2. The flame is directed into a rectangular, transparent glass dish.\n3. The dish contains a white, opaque liquid.\n4. The area of the liquid being heated by the flame has turned a brownish color." }, { "image": [ "066_mirage_desert.png" ], "question": "Assuming a sudden loud alarm sounds from an area represented by several tall smokestacks, which acoustic effect is most likely for a person standing where the photo was taken?\nA. In open terrain, the sound decays uniformly according to the standard inverse-square law.\nB. Due to reflection from the sand, the sound is amplified and sounds unusually clear.\nC. The sound refracts upward, making it weaker than expected at this location, possibly even inaudible.\nD. Airborne sand particles significantly absorb acoustic energy, causing high frequencies to nearly vanish.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image shows a landscape of rolling sand dunes, characteristic of a desert.\n2. The sky is clear and bright blue, indicating it is daytime and sunny.\n3. A city skyline with tall structures, including smokestacks, is visible in the far distance.\n4. The vast expanse of sand between the viewpoint and the distant city indicates a long distance for sound to travel." }, { "image": [ "070_phenolphthalein_color_change.jpg" ], "question": "Assume that a small open cup of concentrated hydrochloric acid is placed inside the glass dome at this moment. What new phenomenon is most likely to be observed?\nA. White solid particles will form in the air.\nB. The liquid in the right-hand cup will rapidly darken.\nC. The liquid in the left-hand cup will turn colorless again.\nD. A large number of bubbles will be produced in the left-hand cup.", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image shows a three-stage experiment involving two beakers of liquid.\n2. In the first stage, both beakers contain a clear, colorless liquid.\n3. In the second stage, the beakers are placed under a glass dome, and the liquid in the left beaker develops a pink layer on its surface.\n4. In the third stage, the pink color in the left beaker intensifies and spreads.\n5. The pink color is characteristic of a phenolphthalein indicator in a basic solution.\n6. The experiment demonstrates that a volatile substance (a gas) is being released from the right beaker, diffusing through the air, and dissolving in the left beaker, causing a chemical change. This volatile substance must be a base, like ammonia." }, { "image": [ "072_pingpang_convex_lens_or_concave_lens.jpg" ], "question": "An elderly person who has difficulty reading small print due to age and a teenager who cannot see a distant blackboard arrive at the lens display center shown in the image. If we label the large circular transparent object on the left as A, and the one on the right as B, which object can be processed into a corrective lens suitable for the teenager?\nA. Object B\nB. Object A\nC. Either A or B, depending on the processing technique\nD. Neither A nor B can focus light, so neither can be used", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The transparent object on the left (A) shows a diminished image of the white sphere and the stepped stand behind it.\n2. The transparent object on the right (B) shows a magnified image of the white sphere and the red stripes of the stand behind it.\n3. The background has Chinese characters \"镜片展示\", which translates to \"Lens Display\"." }, { "image": [ "073_pingpong_in_hot_water.jpg" ], "question": "If the ping-pong ball on the right is immediately placed in a −20 °C environment and left undisturbed for 10 minutes, what is its most likely shape?\nA. It keeps swelling and becomes larger.\nB. It develops an inward dent or collapses.\nC. Its shape remains completely unchanged.\nD. The surface becomes rough due to frost from condensed water, but the volume stays the same.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image on the left shows an orange ping-pong ball with a large inward dent.\n2. The image on the right shows the same beaker filled with a clear liquid.\n3. In the right image, the ping-pong ball is floating in the liquid and is now spherical, with no visible dent.\n4. In the right image, the inner surface of the beaker above the liquid level is covered in condensation, indicating the liquid is hot." }, { "image": [ "074_pingpong_sound_produced_by_vibrations.jpg" ], "question": "If the entire setup shown in the image is placed in an ideal vacuum and the operation is repeated, how will the observer’s perception of the phenomenon in the rightmost panel change?\nA. The observer will first see the sphere being knocked away, then, after a noticeable delay, hear the sound.\nB. The white sphere will not move because energy cannot be transmitted in a vacuum.\nC. The observer will see the white sphere being knocked away but will not perceive any corresponding sound.\nD. Due to the lack of air resistance, the speed and distance of the white sphere’s motion will greatly increase.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image is a triptych showing three stages of an action.\n2. In the leftmost panel, a mallet is positioned to strike a tuning fork.\n3. In the middle panel, a white sphere hangs from a string, positioned next to the tuning fork.\n4. In the rightmost panel, the white sphere is shown in blurred motion, moving away from the tuning fork.\n5. The prongs of the tuning fork in the rightmost panel are depicted with motion blur, indicating vibration." }, { "image": [ "075_protein_denaturation.png" ], "question": "Assuming that before pouring the white liquid from the upper container in the image, you first add a small spoonful of household baking soda (sodium bicarbonate) to the transparent liquid in the glass, what is most likely to happen?\nA. The liquid will foam vigorously, possibly accompanied by a hissing sound.\nB. The liquid’s temperature will drop significantly.\nC. A chunky white precipitate similar to that in the image will form.\nD. The liquid will turn light blue, similar to the effect of some acid–base indicators.", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The transparent liquid in the glass has many bubbles, indicating it is carbonated.\n2. A green bottle with white branding, resembling a Sprite bottle, is visible in the background.\n3. A white liquid, which looks like milk, is being poured into the glass.\n4. Upon contact with the clear liquid, the white liquid is forming white, chunky clumps, which is characteristic of milk curdling in an acidic solution." }, { "image": [ "080_sea_mirage.png" ], "question": "Assume a ship releases a standard hot-air balloon in the waters near the distant buildings shown in the image. Compared with launching in a normal atmosphere with uniform temperature, how will the initial ascent be affected here?\nA. Ascent becomes more difficult because the warm air layer above suppresses the balloon downward.\nB. Ascent becomes easier because the balloon more readily develops a density difference with the surrounding air.\nC. Efficiency of ascent is unchanged because the balloon’s buoyancy depends only on its internal temperature.\nD. The ascent is severely disrupted by sea breezes, making its flight path highly unstable.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A body of water with waves is in the foreground.\n2. A dense layer of white fog is situated low over the water.\n3. A city skyline is visible in the distance.\n4. The fog layer obscures the lower parts of the distant buildings.\n5. The upper parts of the buildings are visible above the fog layer.\n6. The sky above the fog appears blue with some clouds." }, { "image": [ "082_softrime_desublimation.png" ], "question": "Assuming the sky then clears, relative humidity drops significantly, and the temperature stays around −5 °C throughout, by which process will the mass of the solid deposits on the tree canopy surface mainly decrease?\nA. Melt into droplets and drip off\nB. Directly transition to water vapor and diffuse\nC. Continue to deposit (sublime onto the surface) so it “apparently decreases”\nD. Become compacted into denser solid and thus decrease", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The branches and trunks of the trees are coated in a thick layer of white, solid material, identified as frost or rime ice.\n2. The ground is covered with snow.\n3. A road or path running through the trees has tire tracks in the snow.\n4. The trees are deciduous and have no leaves, which is characteristic of winter.\n5. The sky is clear and bright blue." }, { "image": [ "085_starch_and_iodine.png" ], "question": "Which of the following objects, in its original, unprocessed biological form, has the core function of serving as long-term energy storage?\nA. The object in the lower-left corner\nB. The object in the upper-left corner\nC. The objects in the upper-left, upper-right, and lower-right corners\nD. The lower-left object is the best source of ascorbic acid", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. An object in the upper-left is a slice of a tuber, likely a potato, with light-colored flesh and skin visible.\n2. An object in the lower-left is a slice of a fruit, likely an apple, with white flesh and red skin.\n3. An object in the upper-right is a round, golden-brown cracker.\n4. An object in the lower-right is a thin, irregularly shaped snack, likely a potato chip.\n5. A dark liquid has been applied to all four items.\n6. On the potato slice (upper-left), the area with the liquid has turned a very dark, greenish-black color.\n7. On the apple slice (lower-left), the area with the liquid has turned a brownish-orange color.\n8. On the cracker (upper-right) and the potato chip (lower-right), the areas with the liquid have turned a very dark, black color." }, { "image": [ "087_straw_electrification_friction.jpg" ], "question": "If the long, strip-shaped object held by the person in the picture is brought near a very thin and steady stream of water flowing from a faucet, what phenomenon is most likely to occur?\nA. The object will float on the water’s surface.\nB. The water stream will bend away from the object.\nC. The water stream will bend toward the object.\nD. The water stream’s path will not be affected.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A person is rubbing a long, yellowish rod with a white cloth.\n2. Small pieces of paper are lying on a blue gridded surface.\n3. The yellowish rod is shown attracting and holding the small pieces of paper at its tip." }, { "image": [ "088_straw_light_travels_in_straight_line.png" ], "question": "If the transparent liquid in the cup is completely replaced with an equal volume of glycerol, from the current viewing angle, how will the apparent depth of the tip of the red long rod submerged in the liquid change?\nA. It will appear deeper.\nB. It will appear shallower.\nC. The apparent depth will remain unchanged.\nD. The rod’s physical position will change due to buoyancy, causing a change in apparent depth.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A transparent glass is on a table.\n2. The glass is partially filled with a clear, transparent liquid.\n3. A long, straight, red rod is inserted into the glass at an angle.\n4. The part of the rod submerged in the liquid appears to be bent upwards relative to the part of the rod in the air.\n5. The apparent angle of the submerged part of the rod is less steep than the part above the water. This makes the submerged part look shallower than it would if it were a straight line.\n6. The background includes a TV stand with panda decorations and a light blue appliance. These are irrelevant to the physics problem but are part of the visual scene. The key observation is the \"broken\" appearance of the rod.\n7. There is a transparent glass containing a clear liquid.\n8. A straight red rod is placed in the glass, partially submerged in the liquid.\n9. The rod appears bent at the interface between the air and the liquid.\n10. The submerged portion of the rod appears to be at a shallower angle than the portion above the liquid.\n" }, { "image": [ "089_wooden_stick_went_out.jpg" ], "question": "If a short sound is produced inside the container shown in the second picture, compared with the same sound produced in the air outside the container, which of the following changes is most likely to occur in the nature of the sound?\nA. The pitch will sound sharper.\nB. The pitch will sound lower.\nC. The sound will produce a more obvious echo due to reflection from the container walls.\nD. The propagation of the sound will be completely blocked.", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a transparent container made of glass.\n2. The container in the second panel is covered by a flat lid, creating an enclosed space.\n3. The inner surfaces of the container are smooth." }, { "image": [ "091_sunflow_afternoon.png" ], "question": "Considering the specific physiological posture displayed by the primary organisms in the foreground, which transformation is this human-managed ecosystem most likely to undergo in the near term?\nA. Initiate a nocturnal positive-phototaxis mechanism to prepare for the next light cycle.\nB. Its main constituent units will reorient to track the luminous body on the horizon.\nC. Enter a dormancy phase triggered by changes in photoperiod.\nD. Experience a large-scale biomass removal event.", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The image shows a field of sunflowers planted in rows, indicating it is a cultivated farm.\n2. The sun is setting on the horizon, casting a warm, golden light.\n3. The sunflower heads are large and many are drooping, which suggests they are mature and heavy with seeds.\n4. The plants are tall with large green leaves, indicating they are at the peak or end of their growing season.\n5. The field is vast, extending over rolling hills into the distance." }, { "image": [ "093_sunflow_evening.png" ], "question": "Based on the visual information in this photo, what will be the state of the sunflower head that’s sharpest in the foreground at 9:00 a.m. the next day?\nA. It will turn so that its head faces the direction of sunrise.\nB. Its orientation will remain roughly the same as shown in the picture.\nC. It will close completely due to the lack of sunlight overnight.\nD. Its head will face due west, matching the direction of the previous day’s sunset.", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a field of sunflowers.\n2. A single, large sunflower with bright yellow petals is in sharp focus in the foreground.\n3. The head of the foreground sunflower appears fully bloomed and developed, suggesting it is mature.\n4. A small insect, likely a bee, is visible on the disk of the foreground sunflower.\n5. The sky in the background is colored with purple, pink, and orange hues, indicating the time is either sunrise or sunset.\n6. The foreground sunflower is facing the viewer." }, { "image": [ "095_teeterboard.png" ], "question": "Assuming the two people in the image want to achieve perfect static balance (i.e., the seesaw is perfectly level), what is the most effective action for the person who is currently lifted off the ground?\nA. Move toward the central pivot\nB. Move toward the end on their own side\nC. Stay in place and have the other person push off the ground\nD. Ask the other person to also move toward the central pivot", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. Two people are on a yellow seesaw with a blue central pivot.\n2. One person is a man in a green shirt, and the other is a person in a pink shirt and blue jeans.\n3. The man in the green shirt is on the side of the seesaw that is elevated in the air.\n4. The person in the pink shirt is on the side of the seesaw that is resting on the ground.\n5. The man in the green shirt appears physically larger and heavier than the person in the pink shirt.\n6. The person on the ground has their feet on the concrete surface." }, { "image": [ "097_egg.jpg" ], "question": "At the moment immediately after the experiment shown in the figure ends, the temperature of the wide-mouth bottle and the surrounding environment remains temporarily unchanged. A U-shaped glass tube containing a small amount of liquid is then used, with one end connected to the inside of the bottle and the other end open to the outside atmosphere. After the system is allowed to rest until it reaches a new equilibrium, which of the following is the most likely situation for the liquid levels in the U-tube?\nA. The liquid level on the side open to the outside air is higher\nB. The liquid level on the side connected to the bottle is higher\nC. The levels on both sides remain equal, because the free surface of a static liquid must always be horizontal\nD. The liquid levels will oscillate violently for a long time and cannot reach a stable height", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The top image shows an egg that is larger than the opening of a glass bottle and cannot pass through it.\n2. The bottom image shows the egg has moved from the opening to the inside of the bottle.\n3. In the bottom image, there is a crumpled, ashen-looking object at the bottom of the bottle, suggesting something was burned inside." }, { "image": [ "101_wood_strip_with_spark.jpg" ], "question": "Place a damp iron sheet into the wide-mouthed bottle shown and seal it, leaving it undisturbed for several days. Compared with an identical iron sheet left in ordinary air, which outcome is most likely for the iron sheet in the bottle?\nA. Rusts faster throughout, forming a thicker rust layer\nB. Rusting occurs at first but soon slows and stops, with overall less corrosion\nC. Barely rusts at all because it is completely isolated\nD. Is quickly and strongly corroded, dissolving into ions", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image is a diptych showing a before and after state of an experiment.\n2. A hand holds a glass slide over the mouth of a clear glass jar.\n3. A wooden splint with a glowing red ember at its tip is shown.\n4. When the splint is inserted into the jar, the glowing ember ignites into a bright yellow-orange flame.\n5. The jar is a wide-mouthed glass bottle." }, { "image": [ "103.jpg" ], "question": "If you drip water at the fold of a toothpick, where will the coin eventually be in a stable position?\nA. It will be located inside the glass container.\nB. It will remain in its current position, held up by the supporting structure.\nC. It will be ejected upward and break away from the container.\nD. It will be above the water surface inside the container, lifted by water vapor.", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A metal coin is balanced on top of two toothpicks.\n2. The two toothpicks are laid across the opening of a glass container.\n3. The toothpicks are bent or broken in the middle, forming a V-shape structure that supports the coin.\n4. The ends of the toothpicks are resting on the glass rim of the container's opening.\n5. The coin is positioned directly above the opening of the container.\n6. The toothpicks are made of wood." }, { "image": [ "105.png" ], "question": "If a just-lit match with a steady flame is slowly moved horizontally to the edge of this object, what is the most likely phenomenon to occur?\nA. The flame’s color turns bright blue\nB. The flame burns more vigorously, possibly with a slight popping sound\nC. The flame goes out immediately\nD. The flame’s brightness or color shows no obvious change", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The main object is a yellow fruit with a textured peel, consistent with a lemon that has been cut in half.\n2. There is a white powder on the cut surface of the lemon.\n3. There is a blue liquid on the cut surface, surrounding the white powder." }, { "image": [ "106.png" ], "question": "At which spot on the balloon is a touch most likely to make it burst the fastest?\nA. At the knot\nB. At the top center of the balloon\nC. At the balloon’s “equator”\nD. The effect is the same anywhere", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A green balloon is inflated.\n2. A wooden skewer is shown passing through the entire balloon from bottom to top.\n3. The skewer enters the balloon near the tied knot.\n4. The skewer exits the balloon at the top center, opposite the knot.\n5. The balloon has not burst, even though it has been pierced by the skewer." }, { "image": [ "108.png" ], "question": "Assuming the setup is in the stationary state shown, and the hands holding the tops of the two hanging objects (A on the left, B on the right) are released at the same time, which object will begin accelerating downward first?\nA. Object A\nB. Object B\nC. A and B start at the same time\nD. Cannot be determined from the image", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A metallic sphere is suspended from the bottom of a metal spring.\n2. The metal spring is stretched, with visible gaps between its coils.\n3. A hand holds the top of the metal spring.\n4. A second, similar metallic sphere is suspended from the bottom of a yellow ribbon.\n5. The yellow ribbon is taut.\n6. A hand holds the top of the yellow ribbon." }, { "image": [ "109.png" ], "question": "Assume the two samples in the image (A on the left, B on the right) are immediately placed into a freezer held at a constant −5 °C. After 30 minutes, on which sample’s cut surface is the juice most likely to begin forming frost first?\nA. The juice on sample A\nB. The juice on sample B\nC. Both begin freezing at the same time\nD. At this temperature, neither will freeze", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. There are two cut, upright sections of a green, bumpy-skinned cucumber.\n2. A white strip of material is placed over the top cut surface of each cucumber section.\n3. The strip on the left cucumber is mostly white and appears dry, except for a small blue area where it contacts the cucumber flesh.\n4. The strip on the right cucumber is saturated with a blue-green liquid that has soaked a large portion of the strip.\n5. The wet portion of the strip on the right cucumber has a textured, almost crystalline appearance." }, { "image": [ "110.png" ], "question": "Assume the three plates in the image contain slices from the same batch of daikon radish, each processed by a different method: soaked in white vinegar, soaked in plain water, and boiled in colored water. Now, using a toothpick at the same vertical angle and with the same force to poke the slices on all three plates, which plate’s slices will exhibit the smallest penetration resistance (i.e., be easiest to pierce)?\nA. Left plate\nB. Middle plate\nC. Right plate\nD. No significant difference among the three", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. Three white plates with sliced food are arranged horizontally on a speckled countertop.\n2. The slices on the middle plate have a pink interior and a white outer layer.\n3. The slices on the left plate are uniformly colored a deep, purplish-magenta.\n4. The slices on the right plate are uniformly colored a deep, reddish-magenta.\n5. The slices on the middle plate appear to have a crisper texture and more defined shape than the slices on the left and right plates.\n6. Two pairs of wooden chopsticks are placed on the countertop between the plates." }, { "image": [ "112.png" ], "question": "Assuming the player accurately hits the white cue ball as shown in the illustration, which ball will it hit after the collision?\nA. The red and white striped ball \nB. The black ball \nC. The yellow ball \nD. The blue ball", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A person's hand is on a green pool table, forming a bridge to guide a cue stick.\n2. A wooden cue stick is aimed at a white cue ball.\n3. A solid blue ball is positioned on the table directly in the path of the cue stick and the white cue ball.\n4. A black ball is on the table, located to the right of the direct line between the cue ball and the blue ball.\n5. There is a red and white striped ball on the table, located on the hitting line\n6. A yellow ball is visible in the upper right corner of the table, far from the line of the shot." }, { "image": [ "113.png" ], "question": "How to reduce this type of change?\nA. Soaking in cold water \nB. Exposing to sunlight \nC. Heating and drying \nD. Placing in a ventilated area", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The image shows potatoes that have been cut in half.\n2. The interior of the cut potatoes shows dark, black or brown discoloration in the central part.\n3. The outer flesh of the potato is a normal yellowish color.\n4. The skin of the potatoes is intact and appears light brown.\n5. There are multiple potatoes, some whole and some cut." }, { "image": [ "114.png" ], "question": "Assuming a gardener collects a large amount of muddy road slush from the pictured road surface and uses it to water a common ornamental shrub on the roadside lawn.What is the most likely outcome for the shrub in the following week?\nA. It will grow more vigorously because the snowmelt is rich in minerals.\nB. It will remain unchanged.\nC. Its leaf edges will begin to turn yellow and scorch, showing signs of dehydration.\nD. The roots will freeze because the water temperature is too low", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. There is snow covering the trees and hills in the background.\n2. The road surface is wet and appears cleared of thick snow, though some slush remains.\n3. A front-end loader, a type of heavy machinery, is being used on the road.\n4. People, including two police officers, are in the bucket of the front-end loader, interacting with snow/slush.\n5. Snow/slush is being thrown from the loader's bucket onto the road surface." }, { "image": [ "115.png" ], "question": "Suppose a small demonstration solar panel is placed in the image, tasked with lighting up a small LED bulb. To make this LED bulb reach its maximum brightness, which direction should the light-receiving surface of the panel face?\nA. Vertically upwards, towards the ceiling.\nB. Horizontally, towards the interior of the room.\nC. Horizontally, towards the large glass structure in the background.\nD. It cannot be determined; it depends on the specific time of day.", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A cluster of plant sprouts is shown growing from a small, round container.\n2. All the sprouts are leaning or bending in the same direction, towards the left side of the image.\n3. In the background, to the left, there is a large glass window with a white frame.\n4. Through the glass window, green trees and foliage are visible, indicating an outdoor scene.\n5. The plant stems are mostly white/pale yellow and thin, while the leaves at their tips are green." }, { "image": [ "117.png" ], "question": "The fundamental cause of the phenomenon shown in the image is most similar to which of the following?\nA. A leaf becoming dry and withered due to water evaporation after prolonged exposure to sunlight.\nB. The felting of a wool sweater after being washed in hot water with a strong detergent.\nC. Wood cracking due to the loss of internal moisture in a completely dry environment.\nD. An iron pot developing red rust after being left in damp air.", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows the back of a human hand.\n2. The skin on the hand has many fine lines and wrinkles.\n3. The texture of the skin appears dry and slightly flaky.\n4. Veins are visible beneath the skin." }, { "image": [ "118.png" ], "question": "Assume object A and object B are as shown in the image. Now, take a new apple slice (labeled C), which is in the exact same condition as object B, and drip lemon juice evenly onto its surface. Then, place it next to an untreated slice (labeled D) in the open air.After 30 minutes, what state will the cut surface of object C most likely resemble?\nA. Resembling the state of object A \nB. Remaining in the state of object B\nC. Turning blue or green \nD. The surface will carbonize and turn black", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows two apple halves lying cut-side up on a surface.\n2. The apple half on the left has flesh that is a deep yellow-brown color.\n3. The apple half on the right has flesh that is a pale, whitish-yellow color.\n4. The color of the flesh of the left apple half indicates it has been exposed to air and has oxidized (browned).\n5. The color of the flesh of the right apple half indicates it is fresh or has been preserved from oxidation." }, { "image": [ "120.jpg" ], "question": "As shown in the figure, what are the liquids from top to bottom in sequence?\nA. Solution, colloid, suspension\nB. Solution, suspension, colloid\nC. Colloid, solution, suspension\nD. Colloid, suspension, solution", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. In the top image, a distinct, straight red line, which is the path of a laser beam, is visible passing through the red liquid in the vial.\n2. In the middle image, the path of the red laser beam is not visible as it passes through the blue liquid in the vial.\n3. In the bottom image, the red laser beam causes the entire pink liquid to glow brightly and diffusely, and a distinct beam path is not visible." }, { "image": [ "121_liangtong.jpg" ], "question": "How many milliliters of liquid are in the container? (e.g., 5ml)", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "6.8ml", "clues": "1. The image shows a glass graduated cylinder containing a clear liquid.\n2. The cylinder has markings for volume in milliliters (ml).\n3. The maximum capacity of the cylinder is 10 ml.\n4. There are numbered major markings at 4, 6, 8, and 10 ml.\n5. There are 10 subdivisions between each 2 ml major marking.\n6. The liquid has a curved surface (meniscus).\n7. The bottom of the meniscus is positioned on the fourth subdivision line above the 6 ml mark." }, { "image": [ "122_tuning_fork_sound_produced_by_vibrations.jpg" ], "question": "What scientific phenomenon is presented in the image?\nA. Chemical effect of current (electrolysis of water)\nB. Sound is produced by vibration\nC. Magnetic effect of current", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A person in a white lab coat is shown inserting two black rods into a glass of clear liquid.\n2. The glass is filled with a clear liquid, consistent with water.\n3. A close-up shot shows the two black rods submerged in the liquid.\n4. There is vigorous bubbling and splashing of the liquid around the two submerged rods.\n5. The bubbles are seen rising from the surface of the rods within the liquid." }, { "image": [ "123_garlic.jpg" ], "question": "Explain why the fried egg is round.\nA. Garlic juice forms a very thin steam layer between the pan surface and the egg (Leidenfrost effect), reducing friction and adhesion between the egg and the pan.\nB. A thin film rich in oils/organic sulfur compounds remains on the wiped track.\nC. Garlic juice makes the pan surface smoother, reducing friction.\nD. Garlic juice forms a \"hydrophobic layer\" on the pan surface, greatly enhancing the surface tension effect of the egg whites.", "category_1": "Science", "category_2": "Chemistry", "format": "Open-ended", "language": "English", "ground_truth": "B", "clues": "1. A hand is rubbing a peeled garlic clove across the bottom surface of a black frying pan.\n2. The image is a split-screen view, showing the pan being prepared on the left and the result on the right.\n3. On the right side, a raw egg is cooking in the pan.\n4. The egg, particularly the egg white, is holding a compact and nearly perfectly circular shape instead of spreading out.\n5. The pan has a dark, speckled surface, characteristic of some non-stick coatings." }, { "image": [ "124_pingpong.jpg" ], "question": "How can the ball on the right be moved into the container on the left without directly touching the ball, adding any liquids or powders, using any external tools, or blowing air at the ball?\nA. Transfer by laying the glass cup flat\nB. Transfer by shaking the cup\nC. Add water to the container to make it float and then transfer it\nD. Generate static electricity through friction and use electrostatic attraction to move it", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The left image shows an initial state with a white ball on a surface, covered by an inverted stemmed glass held by a hand.\n2. A second glass, a stemless one, is on the left and contains an orange ball.\n3. The right image shows the final state where the white ball is now inside the stemless glass, along with the orange ball.\n4. The balls are small, spherical, and appear lightweight, consistent with ping pong balls.\n5. The inverted glass has a wide mouth and smooth interior, which would allow a ball to roll around its inner circumference easily.\n6. The hand is holding the glass by its base, a grip that facilitates a swirling or shaking motion." }, { "image": [ "125_Pothos.png" ], "question": "What might happen in this region?\nA. Participate in the Water Splashing Festival\nB. Eat black beans stewed with meat\nC. Eat curry fried chicken\nD. Watch koalas eating", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A potted plant with large green leaves is in the foreground on a balcony.\n2. The background shows a dense city scene under a clear blue sky.\n3. The cityscape features a mix of older, low-rise buildings and a modern, tall skyscraper.\n4. The balcony has a tiled floor and an ornate, rusty metal railing." }, { "image": [ "126_ruler.png" ], "question": "For the blue strip in the image, apply a sudden disturbance at the edge and immediately remove the external force. What will its overall dynamics most closely resemble?\nA. Rapid oscillations around the equilibrium position\nB. Unidirectional motion at a constant speed\nC. Wavelike motion\nD. Ideal undamped harmonic motion", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A hand is holding a thin, blue, translucent strip.\n2. The strip appears to be made of a flexible material like plastic, as it is being bent.\n3. The object has the general shape and appearance of a ruler.\n4. The strip is held in a way that one end is free to move if disturbed." }, { "image": [ "128_egg.png" ], "question": "Why can the person in the image pick up a whole egg yolk? Please answer in 25 words or less.", "category_1": "Science", "category_2": "Chemistry", "format": "Open-ended", "language": "English", "ground_truth": "The fingers, after touching garlic, create a thin layer of organic sulfur compounds, allowing the egg yolk to be picked up.", "clues": "1. A hand is holding an intact, raw egg yolk between two fingers.\n2. The egg yolk is being lifted from a glass bowl containing egg white.\n3. A peeled clove of garlic is on the table next to the bowl." }, { "image": [ "129_measuring_cylinder_2.png" ], "question": "How many milliliters of liquid are in the graduated cylinder? (e.g., 5ml)\nA. 6.8ml\nB. 7.2ml\nC. 8.8ml\nD. Cannot be determined", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The image shows a glass graduated cylinder with volume markings.\n2. The unit of measurement is milliliters (ml).\n3. Major numbered markings are visible for 4, 6, 8, and 10 ml.\n4. There are 10 subdivisions between the 6 ml and 8 ml marks.\n5. The cylinder contains a clear liquid that forms a concave meniscus.\n6. The bottom of the meniscus is located one subdivision above the halfway mark between 6 ml and 8 ml." }, { "image": [ "130.png" ], "question": "Suppose the player hits the white cue ball exactly with the posture shown. Which ball will be hit after the collision?\nA. Brown ball\nB. Green ball\nC. Yellow ball\nD. Will not hit any ball in the picture", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. A person is holding a cue stick and aiming at a white cue ball on a green table.\n2. There are several colored balls on the table, including a yellow, a brown, a green, a blue, and a pink ball.\n3. The cue stick is pointing in a straight line that aligns with the white cue ball and the yellow ball.\n4. The yellow ball is located in the upper left area of the table as seen in the image.\n5. The brown and green balls are located to the right of the yellow ball, out of the direct line of the shot." }, { "image": [ "131.png" ], "question": "Suppose there are three plates of sliced radishes (labeled P, Q, and R from left to right in the photo) from the same batch of \"Beauty Heart\" radishes. These three plates of radishes have undergone the following three different treatments respectively: (1) Soaking in white vinegar, (2) Soaking in clear water, (3) Boiling in dark colored water.\nWhat is the most likely combination of treatment methods corresponding to P, Q, and R?\nA. P=(3), Q=(2), R=(1)\nB. P=(1), Q=(2), R=(3)\nC. P=(2), Q=(1), R=(3)\nD. P=(3), Q=(1), R=(2)", "category_1": "Science", "category_2": "Biology", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. There are three white plates of sliced radishes on a speckled countertop.\n2. The radish slices on the leftmost plate are a uniform, dark magenta color.\n3. The radish slices on the middle plate have white rims and pink centers.\n4. The radish slices on the rightmost plate are a uniform, bright, vibrant magenta color.\n5. The slices in the middle plate appear to have the most natural coloration of a \"Beauty Heart\" radish.\n6. The color of the slices on the right plate is more intense than the color of the slices on the middle plate.\n7. The color of the slices on the left plate is darker and less vibrant than the slices on the right plate." }, { "image": [ "132.png" ], "question": "The phenomenon in the picture is:\nA. Pillow structure\nB. Spheroidal structure\nC. Spheroidal weathering\nD. Nodule", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image shows a rock formation composed of numerous individual, rounded, and bulbous masses.\n2. These rounded masses are packed closely together, appearing to be stacked on top of one another.\n3. The shapes of the masses resemble pillows or sacks.\n4. Some of the masses appear to have molded their shape against the ones below them, suggesting they were formed in a fluid or plastic state.\n5. The overall structure is composed of these distinct pillow-like units, rather than being a single rock mass weathered into round shapes." }, { "image": [ "133.png" ], "question": "Compared to the other colored rock in the picture, the formation time of the red rock is:\nA. Earlier\nB. Basically the same\nC. Later\nD. Impossible to determine", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a layered rock formation, indicating sedimentary deposition.\n2. The majority of the rock is reddish-brown in color.\n3. There is a distinct, lighter-colored (grayish-white) rock layer.\n4. The lighter-colored layer is positioned between an upper layer of red rock and a lower layer of red rock.\n5. The layers appear to be parallel and continuous, suggesting an uninterrupted sequence of deposition." }, { "image": [ "134.png" ], "question": "What is the most likely formation environment in the picture?\nA. Strong reducing environment\nB. Weak reducing environment\nC. Strong oxidizing environment\nD. Weak oxidizing environment", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The main color of the exposed soil and rock face is reddish-brown.\n2. The formation exhibits visible horizontal layers, also known as strata.\n3. The reddish-brown coloration appears to be pervasive throughout the exposed layers." }, { "image": [ "135.png" ], "question": "What type of geological structure is shown in the picture? Please answer in 15 words or less.", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Open-ended", "language": "English", "ground_truth": "Pillow structure", "clues": "1. The image shows a rock face composed of many interlocking, polygonal blocks of stone.\n2. The blocks are dark gray and brown, suggesting they are volcanic rock.\n3. The blocks are tightly fitted together, forming a structure that resembles a natural wall.\n4. The rock face forms a steep slope or hill.\n5. Sparse vegetation grows at the bottom and top of the rock formation." }, { "image": [ "136.jpg" ], "question": "What type of solar activity is shown in the picture? Please answer in 15 words or less.", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Open-ended", "language": "English", "ground_truth": "Solar filament", "clues": "1. The image shows a large, spherical object with a bright, textured orange surface.\n2. Long, dark, thread-like structures are visible across the object's surface.\n3. Several areas on the surface are noticeably brighter than the surrounding regions.\n4. Text at the top reads \"CHASE-HIS 6562.82\", which identifies the instrument and observation wavelength.\n5. The image has X and Y axes with units of \"arcsec\"." }, { "image": [ "137.png" ], "question": "Assuming the photographer is facing due east. What effects will occur as the clouds move from the western mountain base to the eastern mountain base? (Limit to 10 characters)", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Open-ended", "language": "English", "ground_truth": "Foehn effect", "clues": "1. A dark, human-like shadow is projected onto a misty or cloudy surface.\n2. A circular halo of colored light, similar to a rainbow, surrounds the head area of the shadow.\n3. The viewpoint is from a rocky cliff edge, looking downwards.\n4. The atmosphere is filled with fog or low-lying clouds.\n5. The left side of the rocky cliff is illuminated, suggesting a light source from behind and to the right of the viewer's perspective (consistent with a sun in the west if the viewer faces east)." }, { "image": [ "139.png" ], "question": "Suppose the player hits the white cue ball exactly with the posture shown. Which ball will be hit after the collision?\nA. Brown ball\nB. Green ball\nC. Yellow ball\nD. Will not hit any ball in the picture", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. A woman is leaning over a green pool table, holding a cue stick in a shooting position.\n2. The cue stick is aimed at a light-colored ball (the cue ball).\n3. The cue stick, the cue ball, and a brown ball are aligned in a straight line.\n4. A green ball is positioned to the left of the brown ball, not in the direct path of the cue stick.\n5. A yellow ball is positioned to the right of the brown ball, not in the direct path of the cue stick.\n6. The player's eyes are focused along the line formed by the cue stick, cue ball, and brown ball." }, { "image": [ "141.png" ], "question": "Suppose a small spoonful of edible baking soda is added to the milk in the image (Cup A) and another cup of milk (Cup B). Which cup is most likely to immediately produce a large amount of new, more vigorous bubbles?\nA. Cup A\nB. Cup B\nC. Both will produce the same amount of bubbles\nD. Neither will produce vigorous bubbles", "category_1": "Science", "category_2": "Chemistry", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The liquid in the cup is white.\n2. The surface of the liquid is covered with a layer of bubbles.\n3. The bubbles are of various sizes, some large and some small.\n4. The liquid is contained in a round, light-colored cup." }, { "image": [ "142.png" ], "question": "Assuming the picture was taken immediately after a tree was cut down at 3:00 PM in the Northern Hemisphere, in which direction might the sun be from the photographer's perspective? Please answer in 15 words or less.", "category_1": "Science", "category_2": "Biology", "format": "Open-ended", "language": "English", "ground_truth": "Right rear", "clues": "1. The image is a black and white depiction of a cross-section of a tree trunk.\n2. The cross-section displays numerous growth rings.\n3. The growth rings are not uniform in width; they are wider on one side and narrower on the opposite side.\n4. The center of the ring pattern is offset from the physical center of the wood slice.\n5. The outer edge of the trunk, the bark, is visible and has a rough texture." }, { "image": [ "143.png" ], "question": "What physical phenomenon is demonstrated in the picture? (Limit to ten characters)", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "Bernoulli effect", "clues": "1. The scene is a multi-lane highway with white lane markings.\n2. There are several large trucks driving on the highway.\n3. The cargo areas of the trucks are covered with flexible tarps.\n4. The tarps on the sides of the trucks are visibly curved and bulging outwards.\n5. Other vehicles, like a white car, are also on the road, indicating traffic in motion." }, { "image": [ "144.png" ], "question": "Assuming the camera is facing west, determine the direction from which the impact object came (e.g., from north to south). Please answer in 10 words or less.", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "From East to West", "clues": "1. A glass is shattering into many small pieces.\n2. The fragments of glass are flying outwards.\n3. The concentration of fractures and the origin of the explosion appear to be on the right side of the glass." }, { "image": [ "145.png" ], "question": "Assuming the picture was taken immediately after a tree was cut down in the morning in the Northern Hemisphere, in which direction might the sun be from the photographer's perspective? Please answer in 10 words or less.", "category_1": "Science", "category_2": "Biology", "format": "Open-ended", "language": "English", "ground_truth": "Left rear", "clues": "1. The image is a cross-section of a tree log showing annual growth rings.\n2. The center of the growth rings is offset to the right of the log's geometric center.\n3. The spacing between the rings is wider on the left side of the log.\n4. The log is in a forest environment." }, { "image": [ "146.png" ], "question": "Assuming the picture was taken at 3:00 PM in the Northern Hemisphere, in which direction relative to the picture might the sun be located? Please answer in 10 words or less.", "category_1": "Science", "category_2": "Biology", "format": "Open-ended", "language": "English", "ground_truth": "Lower right", "clues": "1. The image shows a cross-section of a tree trunk with concentric and eccentric growth rings.\n2. The growth rings are more widely spaced on the right and bottom-right portions of the image.\n3. The growth rings are more compressed on the left and top-left portions of the image.\n4. The center of the rings is offset towards the top-left of the image's center." }, { "image": [ "147.png" ], "question": "Assuming the picture was taken at 3:00 PM in the Northern Hemisphere, in which direction might the sun be from the photographer's perspective? Please answer in 10 words or less.", "category_1": "Science", "category_2": "Biology", "format": "Open-ended", "language": "English", "ground_truth": "Left front", "clues": "1. The image shows a close-up of the top surface of a cut tree stump.\n2. The stump is illuminated by a strong light source, creating bright areas and shadows.\n3. The light is coming from the left side of the image frame.\n4. The stump casts a shadow onto the ground to its right and rear." }, { "image": [ "148.png" ], "question": "Which of the following situations will cause the phenomenon shown in the picture?\nA. A submarine changing the water volume in its ballast tanks\nB. An airplane wing generating lift\nC. Standing next to a high-speed train\nD. A soccer player kicking a banana ball", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. There is a black teapot in the image.\n2. The teapot is tilted, suggesting it is pouring liquid.\n3. A stream of liquid is visible, originating from the teapot.\n4. The liquid stream is adhering to the curved underside of the teapot's body, rather than falling straight down from the spout." }, { "image": [ "150.png" ], "question": "From the boy's perspective in the picture, where should the girl be located?\nA. Front-left\nB. Front-right\nC. Rear-left\nD. Rear-right", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. A boy, viewed from behind, is standing in the foreground, facing into a white room.\n2. A girl, also viewed from behind, is standing to the left of the boy.\n3. The girl is positioned slightly further back in the room than the boy.\n4. The room has mirrored walls and a mirrored ceiling, which creates multiple reflections of the people inside.\n5. The boy and girl are both wearing black clothing." }, { "image": [ "151.png" ], "question": "Please predict the recent temperature changes in this region?\nA. Keep rising\nB. Rise first and then drop\nC. Drop first and then rise\nD. Keep dropping", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "D", "clues": "1. The deciduous trees in the foreground and background are completely bare, with no leaves on their branches.\n2. The scene is set at night, as evidenced by the dark sky and illuminated windows in the surrounding buildings.\n3. There are multi-story apartment buildings and another building with lit windows in the background.\n4. A street lamp is on, casting an orange light on the lower part of the scene.\n5. The sky has a mix of clouds, which are illuminated from below by city lights, and patches of clear, dark blue sky." }, { "image": [ "152.png" ], "question": "What is the most likely situation of the person in the picture at the restaurant?\nA. Just entered the restaurant from outside\nB. Dining at the restaurant\nC. Finished dining and preparing to leave\nD. Cannot be determined", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. A man is sitting at a table in a restaurant setting.\n*\n2. There is a plate of food on the table in front of the man.\n*\n3. The food on the plate appears to be a lobster dish.\n*\n4. There is a glass of water with ice on the table.\n*\n5. The man is dressed in a suit and tie.\n*\n6. The man is seated across from another person.\n*\n7. The restaurant is dimly lit and has other patrons in the background." }, { "image": [ "153.png" ], "question": "There are two balloons on each side of the device. Release the clamp in the middle to connect the balloons. How will each balloon change?\nA. The left one becomes larger, and the right one becomes smaller\nB. The left one becomes smaller, and the right one becomes larger\nC. Both become smaller\nD. Both remain unchanged", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. There are two inflated balloons, one red and one blue.\n2. The red balloon is on the left, and the blue balloon is on the right.\n3. The red balloon is significantly larger in volume than the blue balloon.\n4. The two balloons are connected by a flexible tube.\n5. A binder clip is pinching the tube shut, preventing air from passing between the balloons." }, { "image": [ "154.png" ], "question": "Guess the reason for the water column freezing in the picture. Please answer in 20 words or less.", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "The water column in the picture is not frozen; this is a laminar flow phenomenon.", "clues": "1. Water is flowing out of several holes in the side of a dark plastic container.\n2. The streams of water are transparent and have a very smooth surface.\n3. The water streams lack visible turbulence, ripples, or splashes, making them look like solid columns.\n4. The water appears to be static or frozen in mid-flow.\n5. The container is labeled \"Rubbermaid Commercial Products\"." }, { "image": [ "155.png" ], "question": "Analyze why there is a puddle in the distance. Please answer in 20 words or less.", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "The illusion caused by light refraction through hot air above the road surface.", "clues": "1. The sky is bright and the scene is well-lit, suggesting it is a sunny day.\n2. The road surface is dark asphalt.\n3. A reflective patch resembling water is visible on the road in the distance.\n4. The road surface in the foreground appears to be dry." }, { "image": [ "156.png" ], "question": "From the perspective of the girl on the left in the picture, is there a mirror on her left side? Please answer in Yes or No.", "category_1": "Science", "category_2": "Physics", "format": "Yes or No", "language": "English", "ground_truth": "Yes", "clues": "1. A girl in a black outfit is standing on the left side of the room, shown in profile.\n2. To the left of this girl, there is a vertical surface that acts as a wall.\n3. On this left-side surface, there is a clear reflection of the girl herself.\n4. A reflection of another figure standing to the girl's right is also visible on this left-side surface.\n5. A white staircase is visible on the left, and a reflection of this staircase is also present on the same left-side surface." }, { "image": [ "157.png" ], "question": "In which position of the thunderstorm cloud relative to the observer is the phenomenon in the picture most likely to occur?\nA. Directly below the cloud\nB. Near the lower edge of the cloud\nC. High above the cloud\nD. Near the horizon on the side of the cloud", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The image shows a wide view of a thunderstorm against a dark night sky.\n2. Multiple bolts of lightning are visible, extending from the clouds all the way down to the ground.\n3. The full length and branching structure of the lightning bolts are clearly visible.\n4. A line of small, bright lights, consistent with a distant city or town, is visible along the horizon at the bottom of the image.\n5. The storm appears as a distinct weather system in the distance, not as something directly overhead or surrounding the viewer." }, { "image": [ "158.png" ], "question": "Based on the situation in the figure, which range is the temperature near the ground most likely to fall into at that time?\nA. Above 15°C\nB. Approximately between 0°C and 5°C\nC. Below -15°C\nD. Between 10°C and 15°C", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "A", "clues": "1. The image displays multiple vertical columns of light in the night sky.\n2. These light columns appear to originate from light sources located on the horizon.\n3. The scene is at night, with stars visible in the darker parts of the sky.\n4. There are clouds in the sky, and the light columns appear in or near these clouds." }, { "image": [ "159.png" ], "question": "When this scene was photographed, which of the following is the most likely recent natural condition of the area?\nA. Experiencing a severe thunderstorm\nB. A nearby volcano is erupting\nC. Likely in an area affected by strong seismic activity\nD. Normal sunset with no abnormal natural events", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "C", "clues": "1. The sky contains a large mass of very dark, dense clouds.\n2. Dark vertical streaks, characteristic of rain shafts, are visible falling from the base of the clouds in the distance.\n3. The horizon is brightly lit with orange and red colors, consistent with a sunset.\n4. The overall appearance of the clouds suggests a turbulent, stormy weather system rather than a calm sky." }, { "image": [ "160.png" ], "question": "To fully explain the phenomenon in the figure, which physical principle should be prioritized?\nA. Tyndall effect scattering of light in air particles\nB. Geometric effect of atmospheric perspective\nC. Refraction and dispersion of light by water droplets\nD. Shadow formation from partial blocking of sunlight by clouds", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image depicts a cityscape during sunrise or sunset, with a glowing orange and yellow horizon.\n2. Two prominent dark beams are visible in the sky, radiating upwards from the horizon.\n3. The dark beams are separated by areas of brightly lit sky.\n4. The beams appear to diverge from a single point near the horizon, where the sun would be located.\n5. The phenomenon is atmospheric, occurring in the sky high above the city." }, { "image": [ "161.png" ], "question": "In the location where the phenomenon shown in the picture occurs, should one choose a house with a south-facing balcony to ensure the living room gets sunlight at noon? Please answer in Yes or No.", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Yes or No", "language": "English", "ground_truth": "No", "clues": "1. The image shows a night sky filled with stars.\n2. The constellation Orion is visible in the center of the upper half of the image.\n3. The three stars of Orion's belt are aligned in a row." }, { "image": [ "162.png" ], "question": "In the location where the phenomenon shown in the picture occurs, what season is it during Christmas?", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Open-ended", "language": "English", "ground_truth": "Winter", "clues": "1. The image displays a dark sky filled with numerous small, bright points of light, which are stars.\n2. A prominent group of seven bright stars forms a distinct shape resembling a ladle or a dipper.\n3. This group of seven stars consists of a quadrilateral shape (the bowl) and a curved line of three stars attached to it (the handle)." }, { "image": [ "163.png" ], "question": "In the location where the phenomenon shown in the picture occurs, should one choose a house with a north-facing balcony to ensure the living room gets sunlight at noon? Please answer in Yes or No.", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Yes or No", "language": "English", "ground_truth": "Yes", "clues": "1. The image shows a night sky with numerous stars.\n2. A large, irregularly shaped, nebulous object is visible in the center of the sky.\n3. This celestial object is identifiable as the Large Magellanic Cloud, a satellite galaxy of the Milky Way.\n4. The bottom of the image shows the silhouette of a forest treeline." }, { "image": [ "164.png" ], "question": "In the location where the phenomenon shown in the picture occurs, what season is it during Christmas?", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Open-ended", "language": "English", "ground_truth": "Winter", "clues": "1. There are five distinct bright stars forming a \"W\" shape.\n2. This is the famous constellation Cassiopeia." }, { "image": [ "165.png" ], "question": "In the place where the phenomenon shown in the figure occurs, in which month does the winter solstice fall?", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Open-ended", "language": "English", "ground_truth": "December", "clues": "1. The image shows a large, organized storm system with a spiral cloud structure, characteristic of a tropical cyclone.\n2. The spiral bands of the cyclone are rotating in a clockwise direction.\n3. A clear \"eye\" is visible at the center of the storm's rotation.\n4. The storm is located over a large body of dark blue water, indicating an ocean.\n5. Green landmasses are visible to the right and bottom of the storm.\n6. The shape of the landmass at the bottom right of the image is consistent with the northern tip of Madagascar." }, { "image": [ "166.png" ], "question": "Assuming the picture was taken at 3:00 PM in the Northern Hemisphere, in which direction might the sun be from the photographer's perspective? (e.g., Left front)", "category_1": "Science", "category_2": "Biology", "format": "Open-ended", "language": "English", "ground_truth": "Right front", "clues": "1. A thick layer of green moss is growing on the surface of a wooden log.\n2. The scene is a forest environment, with other logs and foliage visible in the background.\n3. Other surfaces in the background, including another log and the ground, also show moss growth.\n4. The lighting across the scene appears soft and diffuse, with no strong, hard-edged shadows.\n5. The moss appears to cover the top and the side of the log that is facing the camera." }, { "image": [ "167.png" ], "question": "Assuming the picture was taken in the morning in the Northern Hemisphere, in which direction might the sun be from the photographer's perspective? (e.g., Left front)", "category_1": "Science", "category_2": "Biology", "format": "Open-ended", "language": "English", "ground_truth": "Left rear", "clues": "1. The right side of the tree trunk is covered in a thick layer of green moss.\n2. The left side of the tree trunk is mostly bare bark and lighter in color.\n3. The left side of the tree trunk appears more brightly illuminated than the right, moss-covered side." }, { "image": [ "168.png" ], "question": "Assuming the photographer is facing West, in which direction are the cat's four paws extending?", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "South", "clues": "1. A cat is lying on its back on a carpeted floor.\n2. The cat's body is oriented vertically in the image, with its head at the top and tail at the bottom.\n3. The cat's paws are spread out to its left and right sides, perpendicular to its body.\n4. A vertical line, which is the edge or seam of a mirror, runs down the center of the image.\n5. The cat's back is positioned against the base of the mirror.\n6. The right half of the image is a reflection of the left half, confirming the object in the center is a mirror." }, { "image": [ "169.png" ], "question": "In this set of images, for the pair of people walking side by side located at the lower left of the frame, which direction is their actual position relative to the photographer closer to?\nA. Left front\nB. Right front\nC. Behind\nD. Directly above the head", "category_1": "Science", "category_2": "Physics", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image is taken from a high vantage point, looking down onto a street with a crosswalk, a tree, and buildings.\n2. The view is framed by a faceted, mirrored ceiling structure that creates multiple reflections.\n3. The reflections in the upper part of the image show people standing on a platform and the top of an escalator. These people are looking down.\n4. The people reflected in the upper part of the image are on the same level as the photographer's viewpoint.\n5. The photographer is looking forward and down, out of the building where the platform and escalator are located.\n6. The reflections in the lower-left part of the image show pedestrians walking on a sidewalk, part of the street scene below." }, { "image": [ "170.png" ], "question": "Which phenomenon is most similar in principle to the formation of the light effect shown in the picture?\nA. Smoke becoming clearly visible under sunlight\nB. Fireflies emitting light at night\nC. The sea surface reflecting the full glow of the moonlight\nD. Neon lights emitting light", "category_1": "Science", "category_2": "Astronomy and Geography", "format": "Multiple choice", "language": "English", "ground_truth": "B", "clues": "1. The image shows a dark area, appearing to be a sandy or rocky shore, on the left side.\n2. Next to the shore, there is water that is emitting a bright, glowing blue light.\n3. The light is concentrated and most intense in the foamy, agitated water at the boundary with the shore.\n4. The overall darkness of the scene suggests it is nighttime.\n5. The light appears to be generated from within the water itself, not reflected from an external source." }, { "image": [ "171.png" ], "question": "How many mirrors are there in the scene shown in the picture? Please answer with a number (e.g. 2).", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "3", "clues": "1. A person is taking a selfie, which shows their reflection in a mirror they are facing.\n2. A vertical line is visible on the reflective surface in front of the person, indicating a seam between two separate mirror panels.\n3. A reflection of the person from a side angle is visible in the left mirror panel.\n4. An infinite series of reflections, creating a tunnel effect, is visible in the main mirror panel.\n5. The reflection in the main mirror shows the back of the person's head and the wall behind them, which is necessary for the infinite reflection effect." }, { "image": [ "172.png" ], "question": "How many cats are there in the scene shown in the picture? Please answer with a number (e.g. 2).", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "2", "clues": "1. The right side of the image shows multiple figures of black cats on a white surface.\n2. There are visible lines on the white floor, suggesting the edges of mirrors.\n3. A cat is sitting in the center, and an identical-looking cat is sitting next to it, appearing as a mirror image across one of the lines on the floor.\n4. A cat in the foreground is walking towards the camera.\n5. A cat on the middle-left is walking away from the camera." }, { "image": [ "173.png" ], "question": "How many mirrors are there in the scene shown in the picture? Please answer with a number (e.g. 2).", "category_1": "Science", "category_2": "Physics", "format": "Open-ended", "language": "English", "ground_truth": "4", "clues": "1. There is a central reflection of a person taking a selfie, indicating a mirror directly in front of them.\n2. To the right of the central reflection, another reflection of the person is visible, showing their right side. This indicates a second mirror.\n3. To the left of the central reflection, a third reflection of the person is visible, showing their left side. This indicates a third mirror.\n4. The image shows visible vertical seams separating the three different reflections, suggesting three distinct mirror panels." } ]