index int64 0 12.7k | image stringlengths 1.29k 724k ⌀ | question stringlengths 14 862 | multi-choice options stringlengths 7 548 | answer int64 0 4 | hint stringlengths 23 1.85k ⌀ | task stringclasses 3
values | grade stringclasses 12
values | subject stringclasses 3
values | topic stringclasses 26
values | skill stringclasses 321
values | lecture stringclasses 255
values | solution stringlengths 19 2.72k ⌀ | category stringclasses 119
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | iVBORw0KGgoAAAANSUhEUgAAAu4AAAGtCAIAAADGW2bCAAEAAElEQVR4nOz9d3RcyZ7fCf4irs+b3sJ7ECBA71lksciyLPuqnu3up1VLatnRaGdHc7TS7s62dGZXc45W5oy0c2Z7NCM3aknv9evnyhtWFYvekyAAEt7b9D7zuoj9A3g0IAibmQDI+/mjirg3bty4mXkjvhHxM4hSCgAAEI/Hk8lkLpfTdR1MTExMTExMTDYfLMtaLBa73e5wOOaOIEqprusTExOZTGZjG2diYmJiYmJiskJkWa6qqmJZFlFKR0ZGMplMJI+v3uyUWW17... | Which of these states is farthest north? | West Virginia||Louisiana||Arizona||Oklahoma | 0 | null | closed choice | grade2 | social science | geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the north arrow is pointing. West Virginia is farthest north. | Geography |
1 | iVBORw0KGgoAAAANSUhEUgAAAS4AAADoCAIAAADe5J4JAAC/aElEQVR4nOz9WZMkSZImiH3MLKKqdvgRZ0Zm5VV3dVdNT89M7ywwNCBa2iUaALv7R0DzCMJPAN7wE/CGV/wFPAwRHgDsDnaunumu7qrOqrzidHe7VFVEmBkPYubu4REeGR7pkRmRFR8FWZirqanpISzMwsfH9K//9b/GO7zDO3zfCAD+T/+H/2P9g4hOX8/jsu3P3e3bb7/q8d39uduZ+UrHf/7BCQDsamf6/PO57PhK5ATys+/WX2MHAIKdvq8wyJXO5qrwSy728vtv... | Identify the question that Tom and Justin's experiment can best answer. | Do ping pong balls stop rolling along the ground sooner after being launched from a 30° angle or a 45° angle?||Do ping pong balls travel farther when launched from a 30° angle compared to a 45° angle? | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Tom placed a ping pong ball in a catapult, pulled the catapult's arm back to a 45° angle, and launched the ball. Then, Tom launched another ping pong ball, this time pulling the catapult's arm back to a 30° angle. With ... | closed choice | grade8 | natural science | science-and-engineering-practices | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | null | Designing experiments |
2 | "iVBORw0KGgoAAAANSUhEUgAAAS4AAADoCAIAAADe5J4JAAEAAElEQVR4nOz9eZhc13Ufiq619z5DzVU9T+hGN2aAIAGQBMF5pkh(...TRUNCATED) | Identify the question that Kathleen and Bryant's experiment can best answer. | "Does Kathleen's snowboard slide down a hill in less time when it has a layer of wax or when it does(...TRUNCATED) | 0 | "The passage below describes an experiment. Read the passage and then follow the instructions below.(...TRUNCATED) | closed choice | grade7 | natural science | science-and-engineering-practices | Identify the experimental question | "Experiments can be designed to answer specific questions. How can you identify the questions that a(...TRUNCATED) | null | Designing experiments |
3 | null | Which tense does the sentence use?
Mona will print her name with care. | present tense||future tense||past tense | 1 | null | closed choice | grade2 | language science | verbs | Is the sentence in the past, present, or future tense? | "Present tense verbs tell you about something that is happening now.\nMost present-tense verbs are r(...TRUNCATED) | "The sentence is in future tense. You can tell because it uses will before the main verb, print. The(...TRUNCATED) | Verb tense |
4 | null | Complete the sentence.
Sewing an apron is a (). | chemical change||physical change | 1 | null | closed choice | grade4 | natural science | chemistry | Identify physical and chemical changes | "Chemical changes and physical changes are two common ways matter can change.\nIn a chemical change,(...TRUNCATED) | "Sewing an apron is a physical change. The fabric and thread that make up the apron get a new shape,(...TRUNCATED) | Physical and chemical change |
5 | null | Which of the following contains a vague pronoun reference? | "Steven's brother Jim wondered whether he ran fast enough to qualify for the Boston Marathon.||Steve(...TRUNCATED) | 0 | null | closed choice | grade11 | language science | writing-strategies | Identify vague pronoun references | "When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a (...TRUNCATED) | "The first answer choice contains a vague pronoun reference. The pronoun he could refer to Steven or(...TRUNCATED) | Pronouns |
6 | "iVBORw0KGgoAAAANSUhEUgAAAPsAAADvCAIAAAC7VzV8AAAV0klEQVR4nO3de3BT150H8K/ekiX5jW2wLYSNSQIECDaB4GBiQ0K(...TRUNCATED) | "What is the probability that a goat produced by this cross will be homozygous dominant for the myot(...TRUNCATED) | 1/4||0/4||4/4||2/4||3/4 | 0 | "This passage describes the myotonia congenita trait in goats:\nMyotonia congenita is a condition th(...TRUNCATED) | closed choice | grade8 | natural science | biology | Use Punnett squares to calculate probabilities of offspring types | "Offspring genotypes: homozygous or heterozygous?\nHow do you determine whether an organism is homoz(...TRUNCATED) | null | Genes to traits |
7 | "iVBORw0KGgoAAAANSUhEUgAAAjMAAAGVCAIAAACEnef7AAB3oElEQVR4nO3deVwTZ/oA8HdykYSEAOEMBBEl8UYlarG2Uq29JLW(...TRUNCATED) | "Compare the average kinetic energies of the particles in each sample. Which sample has the higher t(...TRUNCATED) | neither; the samples have the same temperature||sample A||sample B | 2 | "The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored(...TRUNCATED) | closed choice | grade8 | natural science | physics | Identify how particle motion affects temperature and pressure | "The temperature of a substance depends on the average kinetic energy of the particles in the substa(...TRUNCATED) | "The particles in both samples have the same average speed, but each particle in sample B has more m(...TRUNCATED) | Particle motion and energy |
8 | null | What do these two changes have in common?
tearing a piece of paper
breaking a piece of glass | "Both are only physical changes.||Both are chemical changes.||Both are caused by cooling.||Both are (...TRUNCATED) | 0 | null | closed choice | grade4 | natural science | chemistry | Compare physical and chemical changes | "Chemical changes and physical changes are two common ways matter can change.\nIn a chemical change,(...TRUNCATED) | "Step 1: Think about each change.\nTearing a piece of paper is a physical change. The paper tears in(...TRUNCATED) | Physical and chemical change |
9 | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAH6CAIAAAD9YK8iAAEAAElEQVR4nOz9d7wl13UeiK619q500o2dAHQD3UhEJEABJJglKjF(...TRUNCATED) | Which of these organisms contains matter that was once part of the phytoplankton? | black rockfish||sea otter | 0 | "Below is a food web from an ocean ecosystem in Monterey Bay, off the coast of California.\nA food w(...TRUNCATED) | closed choice | grade6 | natural science | biology | Interpret food webs II | "A food web is a model.\nA food web shows where organisms in an ecosystem get their food. Models can(...TRUNCATED) | "Use the arrows to follow how matter moves through this food web. For each answer choice, try to fin(...TRUNCATED) | Ecological interactions |
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