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Which continent is highlighted? | [
"Antarctica",
"North America",
"South America"
] | 0 | closed choice | grade2 | social science | geography | Geography | Identify oceans and continents | A continent is one of the seven largest areas of land on earth. | This continent is Antarctica. | ||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | closed choice | grade7 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Select the fish below. | [
"mandarinfish",
"box turtle",
"keel-billed toucan",
"yak"
] | 0 | Fish live underwater. They have fins, not limbs.
Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A manta ray is an example of a fish. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A mandarinfish is a fish. It lives underwater. It has fins, not limbs.
Mandarinfish often live near coral reefs. They eat small worms, snails, and fish eggs.
A yak is a mammal. It has hair and feeds its young milk.
Yaks live in cold places. Their long hair helps keep them warm.
A keel-billed toucan is a bird. It has fe... | |
Which better describes the Serengeti National Park ecosystem? | [
"It has year-round rain. It also has soil that is poor in nutrients.",
"It has a rainy season and a dry season. It also has soil that is poor in nutrients."
] | 1 | Figure: Serengeti National Park.
Serengeti National Park is a savanna grassland ecosystem in Tanzania, a country in eastern Africa. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A savanna grassland is a type of ecosystem. Savanna grasslands have the following features: warm summers and warm winters, a rainy season and a dry season, and soil that is poor in nutrients. So, Serengeti National Park has a rainy season and a dry season. It also has soil that is poor in nutrients. | |
Based on the maps above, what was true about the Southern Colonies compared to the other colonies? | [
"The Southern Colonies had worse soil than New England.",
"The Southern Colonies had a shorter growing season than the Middle Colonies.",
"The Southern Colonies had a longer growing season than the Middle Colonies."
] | 2 | The two maps below give information about the colonial regions of North America. The first map shows how good the soil was for growing crops. The second map shows how many months out of the year had good weather for growing crops. Look at the maps. Then answer the question below. | closed choice | grade5 | social science | us-history | English colonies in North America | Southern colonies: economy and slavery | Look at the maps.
These choices are correct:
The Southern Colonies had better soil than New England.
In the first map, most of the soil in the Southern Colonies is labeled "most fertile." Meanwhile, New England is labeled as "least fertile." Fertile soil is good for growing crops. So, the Southern colonies had better,... | ||
Which statement describes the Sahara Desert ecosystem? | [
"It has warm, wet summers.",
"It has dry, thin soil.",
"It has thick, moist soil"
] | 1 | Figure: Sahara Desert.
The Sahara Desert in northern Africa is the largest hot desert in the world. Less than one-fifth of this desert is covered in sand dunes. Most of the Sahara Desert is covered by bare rock, gravel, and pebbles! | closed choice | grade6 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A hot desert is a type of ecosystem. Hot deserts have the following features: a small amount of rain, dry, thin soil, many different types of organisms, and It has thick, moist soil. So, the following statement describes the Sahara Desert ecosystem: a small amount of rain, dry, thin soil, many different types of organi... | |
Not supported with pagination yet | Which text uses the word nauseous in its traditional sense? | [
"Everyone seemed to enjoy the magnolia-scented candle, but it made Larry feel rather nauseous.",
"Everyone seemed to enjoy the magnolia-scented candle, but Larry found the smell rather nauseous."
] | 1 | closed choice | grade10 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses nauseous in its traditional sense: causing disgust or nausea.
Everyone seemed to enjoy the magnolia-scented candle, but Larry found the smell rather nauseous.
The first text uses nauseous in its nontraditional sense: feeling disgusted or nauseated.
Everyone seemed to enjoy the magnolia-scented cand... | |
Which air temperature was measured within the outlined area shown? | [
"0°C",
"-20°C",
"3°C"
] | 1 | The map below shows air temperatures in the lower atmosphere on April 19, 2016. The outlined area shows an air mass that influenced weather in North America on that day.
Look at the map. Then, answer the question below.
Data source: United States National Oceanic and Atmospheric Administration/Earth System Research Lab... | closed choice | grade6 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show air temperatures.
The map's legend tells you the temperature that each color represents. Colors on the left in the legend represent lower temperatures than colors on the right. For ... | Look at the colors shown within the outlined area. Then, use the legend to determine which air temperatures those colors represent.
15°C.
-20°C is within this range.
0°C and 3°C are outside of this range. | |
Not supported with pagination yet | Answer the riddle.
I am a pet.
I like to wag my tail.
I bark.
What am I? | [
"a cat",
"a dog"
] | 1 | closed choice | grade1 | language science | vocabulary | Comprehension strategies | What am I? | A dog is a pet.
A dog likes to wag its tail.
A dog barks. | ||
Not supported with pagination yet | What do these two changes have in common?
rust forming on a metal gate
making jam | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating.",
"Both are only physical changes."
] | 1 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Rust forming on a metal gate is a chemical change. As the gate rusts, the metal turns into a different type of matter called rust. Rust is reddish-brown and falls apart easily.
Making jam is a chemical change. It involves mixing fruit, sugar, and a substance called pectin.
When these in... | |
Not supported with pagination yet | Complete the sentence.
The Fourth Amendment says that the government needs to have () before it can search a person. | [
"a good reason",
"a declaration of war",
"proof of a crime",
"a large army"
] | 0 | closed choice | grade4 | social science | civics | Government | The Bill of Rights | The Fourth Amendment says that the government needs to have a good reason before it can search a person or his or her property. The Fourth Amendment says that "unreasonable searches" are not allowed. It is not always clear what makes a search "unreasonable." But a search for no reason is definitely unreasonable! Howeve... | ||
Not supported with pagination yet | Is a house a good or a service? | [
"a good",
"a service"
] | 0 | closed choice | grade2 | social science | economics | Economics | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether a house is a good or a service, ask these questions:
Is a house something you can touch? Yes.
Is a house a job you might pay someone else to do? No.
So, a house is a good. | |
Not supported with pagination yet | Which figure of speech is used in this text?
I've heard that Marie & Co. is downsizing, so I'm happy to see that their store in downtown Greenville will remain open for now. | [
"hyperbole",
"euphemism"
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Downsizing is an indirect way of saying that the company is planning on firing employees, closing shops or branches, and/or reducing its budget. | |
Not supported with pagination yet | What does the allusion in this text suggest?
With the gutters clogged and water rising in the streets, Julie, who was watching the storm from her window, commented, "We're going to need an ark to get out of here." | [
"Julie wants to protect her possessions.",
"Julie thinks the storm will cause major flooding."
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An allusion is a brief reference to something or someone well known, often from history or literature.
"I'd better get home before I turn into a pumpkin!" Lila remarked. | The text uses an allusion, a brief reference to someone or something well known.
The allusion to an ark suggests that Julie thinks the storm will cause major flooding. In the Bible, it rains for forty days and forty nights; Noah, his family, and animals of every species survive the great flood in an ark that he builds. | |
What is the name of the colony shown? | [
"Washington, D.C.",
"New York",
"Maryland",
"New Jersey"
] | 2 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Maryland. | |||
Is the following statement about our solar system true or false?
Saturn's volume is more than 10,000 times as large as Mercury's. | [
"false",
"true"
] | 1 | Use the data to answer the question below. | true-or false | grade8 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice.
The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | To determine if this statement is true, calculate the value of 10,000 times the volume of Mercury.
Then compare the result to the volume of Saturn. The volume of Saturn is 8.27 x 10^14 km^3, which is more than 6.08 x 10^14 km^3. So, Saturn's volume is more than 10,000 times as large as Mercury's volume. | |
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"A reporter for the Fairfax Daily Mail dug up an amusing factoid about Fairfax's founder while researching for an article about the town's early years.",
"The Fairfax Daily Mail was forced to issue a retraction after printing a factoid about Fairfax's founder. It turned out that the reporter had written the artic... | 1 | closed choice | grade10 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses factoid in its traditional sense: something made up presented as a true fact.
The Fairfax Daily Mail was forced to issue a retraction after printing a factoid about Fairfax's founder. It turned out that the reporter had written the article based on local legend rather than researching the actual his... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The smaller the magnets, the smaller the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is smaller in Pair 1 than in Pair 2. So, the magnit... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Jane has a scar on her left hand. | [
"inherited",
"acquired"
] | 1 | Hint: Most scars are caused by accidents during a person's life. | closed choice | grade4 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | Children do not inherit their parent's scars. Instead, scars are caused by the environment. People can get scars after they get hurt. So, having a scar is an acquired trait. |
Not supported with pagination yet | What is the mass of a pair of goggles? | [
"5 pounds",
"5 ounces",
"5 tons"
] | 1 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a pair of goggles is 5 ounces.
5 pounds and 5 tons are both too heavy. |
Which month is the wettest on average in Cairo? | [
"March",
"January",
"September"
] | 1 | Use the graph to answer the question below. | closed choice | grade3 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data.
A bar graph can be used to show the average amount of precipitation each month. Months with taller bars have more precipitation on average. | To describe the average precipitation trends in Cairo, look at the graph.
Choice "Jan" is incorrect.
Choice "Mar" is incorrect.
Choice "Sep" is incorrect.
January has an average monthly precipitation of about 15 millimeters. This is higher than in any other month. So, January is the wettest month on average. | |
Not supported with pagination yet | Which figure of speech is used in this text?
For the rare and radiant maiden whom the angels name Lenore . . .
—Edgar Allen Poe, "The Raven" | [
"assonance",
"paradox"
] | 0 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses assonance, the repetition of a vowel sound in a series of nearby words.
The words rare, radiant, maiden, angels, and name share a vowel sound. | |
What is the capital of Washington? | [
"Spokane",
"Seattle",
"Olympia",
"Denver"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Olympia is the capital of Washington. | |||
Not supported with pagination yet | Which is a compound sentence? | [
"Earth is one of eight planets in our solar system.",
"The company lowered its costs, so it won't have to close."
] | 1 | closed choice | grade3 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The second sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so.
The company lowered its costs, so it won't have to close. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
upward - utensil | [
"urge",
"uniform"
] | 0 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since urge is between the guide words upward - utensil, it would be found on that page. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Scarlett told her friends that Juan was a typical Peter Pan type. | [
"Greek mythology",
"literature"
] | 1 | closed choice | grade8 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Peter Pan is literature.
In a J. M. Barrie novel, the character Peter Pan retreats to Neverland and refuses to grow up.
The allusion Peter Pan means a person who won't take on adult responsibilities. | |
Which solution has a higher concentration of pink particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
What is the capital of Illinois? | [
"Dallas",
"Chicago",
"Springfield",
"Bismarck"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Springfield is the capital of Illinois. | |||
What is the capital of Nebraska? | [
"Omaha",
"Chicago",
"Lincoln",
"Boise"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Lincoln is the capital of Nebraska. | |||
Identify the question that Eliana's experiment can best answer. | [
"Does linen fabric turn darker than cotton fabric when soaked in a mixture of black dye and water?",
"Does fabric turn darker when soaked in a mixture of black dye and water for 15 minutes compared to 30 minutes?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Eliana prepared ten buckets, each with one gallon of boiling water and three tablespoons of black fabric dye. Eliana soaked white linen fabric squares in five of the buckets, and white cotton fabric squares in the other... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | 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... | ||
Which term matches the picture? | [
"amplitude",
"wavelength"
] | 0 | Read the text.
The properties of a light wave affect what we see. One property of a light wave is wavelength. Wavelength measures the distance between one crest to the next. The wavelength of light determines what color, if any, is visible to the human eye. The longest visible waves are red and the shortest visible wav... | closed choice | grade8 | language science | word-study | Domain-specific vocabulary | Determine the meaning of domain-specific words with pictures | The amplitude of a light wave refers to the distance between the middle of the wave and the point farthest from the center. This point is usually shown as the highest point on the wave, or the wave's crest. | ||
Not supported with pagination yet | Select the item that doesn't belong. | [
"rope",
"string",
"ribbon",
"glue"
] | 3 | closed choice | grade3 | language science | vocabulary | Categories | Select the words that don't belong | Glue doesn't belong.
String, rope, and ribbon all name items that you can tie things with. | ||
What is the capital of Ohio? | [
"Annapolis",
"Columbus",
"Cheyenne",
"Cincinnati"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Columbus is the capital of Ohio. | |||
Not supported with pagination yet | According to Newton's third law, what other force must be happening? | [
"The disc magnet is pulling on the bar magnet.",
"The disc magnet is pushing on the bar magnet."
] | 1 | Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force.
Consider the following force:
A bar magnet is pushing on a disc magnet. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Predict forces using Newton's third law | According to Newton's third law, for every force, there is an equal and opposite force. This means that if one object is applying a force on a second object, the second object must also be applying a force on the first object, but in the opposite direction.
For example, if your hand is pushing down on a table, the tabl... | The bar magnet is pushing on the disc magnet. So, Newton's third law tells you that the disc magnet is pushing on the bar magnet. |
Not supported with pagination yet | What does the idiom in this text suggest?
Norma submitted her suggestions to Bruce; now the ball is in his court. | [
"Bruce has some difficult work to do.",
"Bruce needs to act next."
] | 1 | closed choice | grade6 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An idiom is an expression that cannot be understood literally. Its meaning must be learned.
The assignment was a piece of cake. | The text uses an idiom, an expression that cannot be understood literally.
The idiom the ball is in his court suggests that Bruce needs to act next. In tennis, when the ball is in a player's court, it is that person's turn. | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your Niece,\nAmy",
"Your niece,\nAmy"
] | 1 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Compare the motion of three blue jays. Which blue jay was moving at the lowest speed? | [
"a blue jay that moved 400kilometers west in 10hours",
"a blue jay that moved 405kilometers south in 10hours",
"a blue jay that moved 335kilometers east in 10hours"
] | 2 | closed choice | grade3 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects mov... | Look at the distance each blue jay moved and the time it took to move that distance. The direction each blue jay moved does not affect its speed.
Notice that each blue jay moved for 10 hours. The blue jay that moved 335 kilometers moved the shortest distance in that time. So, that blue jay must have moved at the lowest... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
Not supported with pagination yet | Complete the statement. Assume that the water balloon's mass did not change.
The gravitational potential energy stored between the water balloon and Earth () as the water balloon fell toward Jeremiah. | [
"stayed the same",
"decreased",
"increased"
] | 1 | Read the text about an object in motion.
Layla dropped a water balloon off a balcony. The water balloon fell toward her friend Jeremiah, who was standing below the balcony. | closed choice | grade6 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between the water balloon and the center of Earth changed.
Jeremiah was lower than the balcony. As the water balloon fell toward Jeremiah, the distance between the water balloon and the center of Earth decreased. So, the gravitational potential energy stored between the water balloon and Ea... |
Is the following statement about our solar system true or false?
The largest planet is made mainly of ice. | [
"false",
"true"
] | 0 | Use the data to answer the question below. | true-or false | grade7 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. | The table tells you that Jupiter is the largest planet and that Jupiter is made mainly of gas. So, the largest planet is made mainly of gas. | |
Not supported with pagination yet | Using only these supplies, which question can Tisha investigate with an experiment? | [
"Do larger basketballs bounce higher than smaller basketballs on a brick patio?",
"Does the basketball bounce higher on gravel or on grass?",
"Does the basketball bounce higher on a lawn or on a dirt path?"
] | 1 | Tisha gets a basketball for her birthday and dribbles it around her neighborhood. She notices that sometimes the ball bounces higher than other times. She wonders what factors affect how high her ball bounces. So, she decides to design an experiment. She has the following supplies available:
one basketball
access to a ... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | Which sentence states a fact? | [
"Most Australians live in cities on the southeast coast, such as Sydney and Melbourne.",
"The cities on the southeast and southwest coasts of Australia are too crowded."
] | 0 | closed choice | grade8 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved true by research or observation.
George Washington became president of the United States in 1789.
This statement is a fact. It can be proved by researching what year George Washington was inaugurated president.
An opinion is something that a person believes, thinks, or feels. An o... | The first sentence states a fact.
Most Australians live in cities on the southeast coast, such as Sydney and Melbourne.
It can be proved by checking a population density map, or a map showing the populations in different areas, of Australia.
The second sentence states an opinion.
The cities on the southeast and southwe... | |
What is the capital of Tennessee? | [
"Nashville",
"Tallahassee",
"Cleveland",
"Jefferson City"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | |||
Not supported with pagination yet | Which text uses the word literally in its traditional sense? | [
"Desmond's new kitten—barely three weeks old—was literally the size of a softball; it could just about fit in the palm of his hand.",
"Desmond's new kitten—barely three weeks old—was literally just a ball of fluff in the palm of his hand."
] | 0 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses literally in its traditional sense: in a factual, non-exaggerated way.
Desmond's new kitten—barely three weeks old—was literally the size of a softball; it could just about fit in the palm of his hand.
The first text uses literally in its nontraditional sense: nearly or in effect (often exaggerated... | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
"Sleeping through the rooster's crowing was no problem," Jim joked with a yawn. | [
"Jim slept well.",
"Jim slept poorly."
] | 1 | closed choice | grade10 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
Sleeping through the rooster's crowing was no problem ironically suggests that Jim slept poorly. Jim was tired, so the rooster's crowing was clearly a problem. | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
He looked about as inconspicuous as a tarantula on a slice of angel food cake.
—Raymond Chandler, Farewell, My Lovely | [
"He was well hidden.",
"He stood out."
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
As inconspicuous as a tarantula on a slice of angel food cake suggests that he stood out. A large spider on a piece of light-colored cake would not be inconspicuous at all; it would be very obvious. | |
Which country is highlighted? | [
"Tuvalu",
"Samoa",
"Tonga",
"Solomon Islands"
] | 1 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Samoa. | |||
Not supported with pagination yet | Which object has less thermal energy? | [
"a cherry pie at a temperature of 30°C",
"a cherry pie at a temperature of 40°C"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter slow down, the temperature goes down. The matter now has both ... | The two cherry pies have the same mass but different temperatures. Since the 30°C pie is colder than the 40°C pie, it has less thermal energy. |
Which property do these three objects have in common? | [
"fragile",
"transparent",
"flexible"
] | 2 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
You can see clearly through a transparent object. None of the objects are transparent.
A flexible object can be folded or bent without breaking easily. All three objects are flexible.
A fragile object will break into pieces if you drop it. The rubber... | |
Which animal's mouth is also adapted to eat plant matter? | [
"orca",
"zebra"
] | 1 | Spotted deer are herbivores, or plant eaters. They eat grass and leaves. The deer's mouth is adapted to grind up and eat plant matter.
Figure: spotted deer. | closed choice | grade4 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's mouth is one example of an adaptation. Animals' mouths can be adapted in different ways. For example, a large mouth with sharp teeth might help an animal tear ... | Look at the picture of the spotted deer.
The spotted deer has long jaws and flat teeth. Its mouth is adapted to eat plant matter. The long jaws can help the spotted deer reach grass. The flat teeth can help it cut and grind up the food into soft pieces it can swallow.
Now look at each animal. Figure out which animal ha... | |
Complete the sentence.
The Kuril Islands formed at a () boundary. | [
"convergent",
"divergent",
"transform"
] | 0 | Read the passage and look at the picture.
The Kuril Islands are part of a volcanic arc that begins near northern Japan and runs north toward Russia’s Kamchatka Peninsula. The islands trace a tectonic boundary where the Pacific Plate moves toward and subducts, or sinks, below the Okhotsk Plate.
Volcanoes in the Kuril Is... | closed choice | grade8 | natural science | earth-science | Plate tectonics | Describe tectonic plate boundaries around the world | The outer layer of Earth is broken up into many pieces called tectonic plates, or simply plates. The breaks between plates are called plate boundaries. Plate boundaries are classified by the way the plates are moving relative to each other:
At a divergent boundary, two plates are moving away from each other.
At a trans... | To figure out what type of plate boundary formed the Kuril Islands, you need to know how the tectonic plates interacted. To find this out, read the passage carefully.
The Kuril Islands are part of a volcanic arc that begins near northern Japan and runs north toward Russia’s Kamchatka Peninsula. The islands trace a tect... | |
Not supported with pagination yet | What information supports the conclusion that Amy inherited this trait? | [
"Amy and her mother both wear their hair in braids.",
"Amy's parents have red hair. They passed down this trait to Amy."
] | 1 | Read the description of a trait.
Amy has red hair. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | What do these two changes have in common?
boiling sugar to make caramel
roasting a marshmallow over a campfire | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are caused by heating."
] | 2 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Boiling sugar to make caramel is a chemical change. The heat causes the sugar to change into a different type of matter. Unlike sugar, the new matter is brown and sticky.
Roasting a marshmallow is a chemical change. The type of matter on the outside of the marshmallow changes. As a mars... | |
Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 1 | Figure: Blue Nile Falls.
Blue Nile Falls is in Ethiopia. West winds carried mist from the falls across the forest this morning.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade4 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
Blue Nile Falls is in Ethiopia. West winds carried mist from the falls across the forest this morning.
The underlined part of the passage tells you about the wind direction at Blue Nile Falls this morning. This passage describes the atmosphere at a certain place and time. So, this passage de... | |
Identify the question that Franco's experiment can best answer. | [
"Can pennies hold more drops of water mixed with dish soap or water mixed with hand soap?",
"Can pennies hold more drops of pure water or water mixed with hand soap?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Franco used a dropper to put equal-sized drops of pure water, one at a time, onto a penny. The drops stayed together and formed a dome on the penny's surface. Franco recorded the number of drops he could add before the ... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | 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... | ||
Not supported with pagination yet | What is the volume of a water balloon? | [
"19 cups",
"19 fluid ounces",
"19 gallons"
] | 1 | Select the best estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose customary units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using customary units, volume may be written in units of fluid ounces, cups,... | The best estimate for the volume of a water balloon is 19 fluid ounces.
19 cups and 19 gallons are both too much. |
What is the capital of Pennsylvania? | [
"Topeka",
"Harrisburg",
"Montpelier",
"Pittsburgh"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Harrisburg is the capital of Pennsylvania. | |||
Not supported with pagination yet | What is the mass of a school bus? | [
"14 pounds",
"14 ounces",
"14 tons"
] | 2 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a school bus is 14 tons.
14 ounces and 14 pounds are both too light. |
Look at the models of molecules below. Select the elementary substance. | [
"benzene",
"fluorine",
"bromomethane"
] | 1 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | |||
What is the name of the colony shown? | [
"Delaware",
"Rhode Island",
"New York",
"Pennsylvania"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Delaware. | |||
Not supported with pagination yet | How long is an apple seed? | [
"6 kilometers",
"6 centimeters",
"6 millimeters"
] | 2 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of an apple seed is 6 millimeters.
6 centimeters and 6 kilometers are both too long. |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
clear - crooked | [
"chimney",
"convince"
] | 1 | closed choice | grade7 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since convince is between the guide words clear - crooked, it would be found on that page. | |
Which solution has a higher concentration of blue particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 2 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
Use the concentration formula to find the number of blue particles per milliliter.
... | |
Which material is this spatula made of? | [
"rubber",
"cotton"
] | 0 | closed choice | grade3 | natural science | physics | Materials | Identify multiple materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials.
Some objects are made of just one material.
Most nails are made of metal.
Other objects are made of more than one material.
This hammer is made of metal and wood. | Look at the picture of the spatula.
The spatula is made of two different materials. The handle is made of wood, and the head is made of rubber. | ||
What is the capital of Hawaii? | [
"Helena",
"Raleigh",
"Honolulu",
"Trenton"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | |||
Identify the question that Bob's experiment can best answer. | [
"Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?",
"Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Bob divided 40 evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Bob opened... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | 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... | ||
What is the capital of Colorado? | [
"Colorado Springs",
"Boulder",
"Denver",
"Olympia"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | Is the student text plagiarized? | [
"Yes, because it fails to use quotation marks.",
"No, it is not plagiarized.",
"Yes, because it fails to cite the source.",
"Yes, because it fails to use quotation marks and fails to cite the source."
] | 2 | Compare the student text with the source.
Source: Bob Brooke, "Oregon Trail: Wagon Tracks West." Published in Wild West Apr. 2000.
Between 1841 and 1866 about 350,000 people used what had become the most famous wagon route across America. It is no wonder that, in places, ruts along the Oregon Trail are still visible to... | closed choice | grade11 | language science | writing-strategies | Research skills | Identify plagiarism | Plagiarism is the act of taking another person's work or ideas and presenting them as your own, either accidentally or on purpose. When you use an outside source in your own writing, you should make sure to cite the source in order to avoid plagiarism. Consider the following source:
Fisher, Goddu, and Keil, "Searching ... | The student text is plagiarized. Although it uses quotation marks around the source's exact words, it fails to cite the source.
Ruts from wagon wheels are still visible in the Oregon Trail today, which is not surprising given that "between 1841 and 1866 about 350,000 people used what had become the most famous wagon ro... |
Not supported with pagination yet | Which text uses the word unique in its traditional sense? | [
"Beth's collection of handmade pottery was featured in last week's edition of the Georgetown Journal, which identified her as \"one of the most unique young artists to debut this year.\"",
"Each vase and bowl in Beth's collection of handmade pottery is unique. The colors and designs reflect both her cultural heri... | 1 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses unique in its traditional sense: being the only one of its kind.
Each vase and bowl in Beth's collection of handmade pottery is unique. The colors and designs reflect both her cultural heritage and her individual artistic style.
The first text uses unique in its nontraditional sense: interesting or... | |
Not supported with pagination yet | Is there a surplus or a shortage of cupcakes? | [
"surplus",
"shortage"
] | 1 | A bakery has 75 cupcakes for sale. The cupcakes cost $1 each. At that price, 200 people want to buy one. | closed choice | grade5 | social science | economics | Supply and demand | Identify shortage and surplus | There is a surplus if there is too much for sale at a given price.
There is a shortage if there is not enough for sale at a given price.
Surpluses and shortages usually happen when people who are selling goods or services charge too much or too little.
When the price is too high, consumers will not want to buy much of ... | At the current price, there are not enough cupcakes for sale. There are 75 cupcakes for sale, but 200 people want to buy one.
So, there is a shortage of cupcakes. |
Not supported with pagination yet | Using only these supplies, which question can Edna investigate with an experiment? | [
"Do sunflowers grow taller if they are planted in planter boxes or in pots?",
"Do sunflowers grow bigger in sunny planter boxes or in shady planter boxes?",
"Which type of sunflower grows more leaves?"
] | 1 | Edna wants to grow sunflowers in her backyard garden. She notices that some sunflowers grow much taller than others. She is curious about what factors affect how sunflowers grow. So, she decides to design an experiment. She has the following supplies available:
seeds from one type of sunflower
soil
one wooden planter b... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is stronger in Pair 2.",
"The magnetic force is stronger in Pair 1.",
"The strength of the magnetic force is the same in both pairs."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are closer together, the magnetic force between them is stronger.
The magnets in Pair 1 are closer together than the magnets in Pair 2. So, the magnetic force is stronger in Pair 1 than in Pair 2. | |
Which three months have an average precipitation of around 3.5inches in Seattle? | [
"May, June, and October",
"April, May, and November",
"February, March, and October"
] | 2 | Use the graph to answer the question below. | closed choice | grade3 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data.
A bar graph can be used to show the average amount of precipitation each month. Months with taller bars have more precipitation on average. | To describe the average precipitation trends in Seattle, look at the graph.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "Apr" is incorrect.
Choice "May" is incorrect.
Choice "Jun" is incorrect.
Choice "Oct" is incorrect.
Choice "Nov" is incorrect.
Choice "February, March, and October" is incorrect.
Feb... | |
Select the organism in the same species as the red kangaroo. | [
"Macropus rufus",
"Alligator sinensis",
"Macropus agilis"
] | 0 | This organism is a red kangaroo. Its scientific name is Macropus rufus. | closed choice | grade8 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A red kangaroo's scientific name is Macropus rufus.
Alligator sinensis does not have the same scientific name as a red kangaroo. So, Macropus rufus and Alligator sinensis are not in the same species.
Macropus rufus has the same scientific name as a red kangaroo. So, these organisms are in the same species.
Macropus ruf... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is stronger in Pair 2.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is stronger in Pair 1."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are closer together, the magnetic force between them is stronger.
The magnets in Pair 1 are closer together than the magnets in Pair 2. So, the magnetic force is stronger in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Select the one animal that has all of the bony fish traits listed above. | [
"Red salamanders do not have lungs! They can breathe through their moist, smooth skin. Adult red salamanders live near rivers or ponds. They lay eggs with no shells under rocks or logs. The baby red salamanders live underwater.",
"Japanese red rockfish live in the Pacific Ocean. They have a bony skeleton and fins... | 1 | Bony fish are a group of animals with similar traits. The following traits can be used to identify bony fish:
They have fins, not limbs.
They live underwater.
They have a skeleton made of bone.
They make eggs with no shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify animals | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Bony fish have the following traits:
They have fins, not limbs.
They live underwater.
They have a skeleton made of bone.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to... |
Select the fish below. | [
"toco toucan",
"flamingo",
"Banggai cardinalfish",
"loon"
] | 2 | Fish live underwater. They have fins, not limbs.
Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A piranha is an example of a fish. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A loon is a bird. It has feathers, two wings, and a beak.
Loons usually live near lakes. They dive in the water to hunt for food.
A toco toucan is a bird. It has feathers, two wings, and a beak.
Toucans have large beaks. A toucan's beak can be half as long as its body.
A flamingo is a bird. It has feathers, two wings, ... | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | 2 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in sample B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average ... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"As David was walking with his friend Bob, he tripped on the uneven sidewalk.",
"As David was walking with his friend Bob, Bob tripped on the uneven sidewalk."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun he could refer to David or Bob.
The second answer choice shows a possible correction for the vague pronoun reference. He has been replaced with Bob.
As David was walking with his friend Bob, Bob tripped on the uneven sidewalk. | |
What is the capital of Arkansas? | [
"Baton Rouge",
"Fayetteville",
"Little Rock",
"Charlotte"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
Not supported with pagination yet | Is coaching basketball a good or a service? | [
"a good",
"a service"
] | 1 | closed choice | grade2 | social science | economics | Economics | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether coaching basketball is a good or a service, ask these questions:
Is coaching basketball something you can touch? No.
Is coaching basketball a job you might pay someone else to do? Yes.
So, coaching basketball is a service. | |
Identify the question that Barry's experiment can best answer. | [
"Do more bacteria grow in liquid with cinnamon than in liquid without cinnamon?",
"Does temperature affect how much bacteria can grow in liquid?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Barry mixed bacteria into a nutrient-rich liquid where the bacteria could grow. He poured four ounces of the mixture into each of ten glass flasks. In five of the ten flasks, he also added one teaspoon of cinnamon. He a... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | 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... | ||
Not supported with pagination yet | Which correctly shows the title of a newspaper? | [
"The Post and mail",
"The Post and Mail"
] | 1 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word and is not important, so it should not be capitalized.
The correct title is The Post and Mail. | |
Which type of force from the pliers takes the nail out of the wood? | [
"pull",
"push"
] | 0 | A pair of pliers is used to take a nail out of a piece of wood. The pliers apply a force to the nail, and the nail comes out of the wood. | closed choice | grade3 | natural science | physics | Force and motion | Identify pushes and pulls | A force is a push or a pull that one object applies to a second object.
The direction of a push is away from the object that is pushing.
The direction of a pull is toward the object that is pulling. | The pliers apply a force to the nail. This force takes the nail out of the wood. The direction of this force is toward the pliers. This force is a pull. | |
Select the reptile below. | [
"Mojave rattlesnake",
"western toad"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A helmeted iguana is an example of a reptile. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A western toad is an amphibian. It has moist skin and begins its life in water.
A Mojave rattlesnake is a reptile. It has scaly, waterproof skin. | |
Not supported with pagination yet | Which is smoother? | [
"bark",
"plastic ball"
] | 1 | closed choice | grade3 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | Smooth is a property. A smooth material is not rough or bumpy.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the plastic ball is smoother. If you touch a plastic bowling ball, it will not feel rough or bumpy. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | closed choice | grade7 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are... | |
What is the probability that a chicken produced by this cross will have yellow legs? | [
"1/4",
"2/4",
"3/4",
"4/4",
"0/4"
] | 1 | In a group of chickens, some individuals have white legs and others have yellow legs. In this group, the gene for the leg color trait has two alleles. The allele for yellow legs (l) is recessive to the allele for white legs (L).
This Punnett square shows a cross between two chickens. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | ||
Which solution has a higher concentration of purple particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the purple particles represent the solute. To figure out which solution has a higher concentration of purple particles, look at both the number of purple particles and the volume of the solvent in each container.
Use the concentration formula to find the number of purple particles per mill... | |
Not supported with pagination yet | How long is an ice skate? | [
"31 centimeters",
"31 meters"
] | 0 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that a pencil is 16 long. You might be thinking, 16 what? Is the pencil 16 centimeters long? 16 meters? 16 kilometers?
The number 16 on its own does not give you much informa... | The better estimate for the length of an ice skate is 31 centimeters.
31 meters is too long. |
What is the capital of Rhode Island? | [
"Little Rock",
"Providence",
"Newport",
"Hartford"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
All of my friends are coming to my birthday party. If Tisha doesn't, she might as well tell me that she doesn't like me. | [
"red herring: the use of a completely unrelated topic or idea",
"false dichotomy: an argument that presents only two choices when more options exist"
] | 1 | closed choice | grade6 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that if Tisha doesn't go to the speaker's birthday party, it means that she hates the speaker. However, there may be a number of reasons why Tisha wouldn't go to the party. This illustrates a type of logical fallacy known as a false dichotomy. | |
In this food chain, the gray fox is a consumer. Why? | [
"It eats another organism.",
"It makes its own food."
] | 0 | This diagram shows a food chain from a forest ecosystem in Virginia. | closed choice | grade4 | natural science | biology | Ecosystems | Identify roles in food chains | Every organism needs food to stay alive. Organisms get their food in different ways. A food chain shows how organisms in an ecosystem get their food.
Producers make their own food. Many producers use carbon dioxide, water, and sunlight to make sugar. This sugar is food for the producer.
Consumers eat other organisms. C... | In this food chain, the gray fox is a consumer because it eats another organism. The gray fox in this food chain eats the skunk. | |
Not supported with pagination yet | Would you find the word tail on a dictionary page with the following guide words?
terrify - transport | [
"no",
"yes"
] | 0 | yes or no | grade3 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since tail is not between the guide words terrify - transport, it would not be found on that page. | |
Is a stuffed rabbit a solid, a liquid, or a gas? | [
"a solid",
"a liquid",
"a gas"
] | 0 | closed choice | grade3 | natural science | physics | States of matter | Classify matter as solid, liquid, or gas | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | A stuffed rabbit is a solid. A solid has a size and shape of its own.
When you hold a stuffed rabbit in your hands, the stuffed rabbit still has a size and shape of its own. | ||
Not supported with pagination yet | Which logical fallacy is used in the text?
Our family will never eat genetically modified food. It's an abomination created by arrogant human tinkering. | [
"false causation: the assumption that because two things happened together, one caused the other",
"hasty generalization: a broad claim based on too few observations",
"appeal to nature: the assumption that natural things are always good"
] | 2 | closed choice | grade12 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that genetically modified food is bad because it's not natural. However, something isn't necessarily bad simply because it's engineered. This illustrates a type of logical fallacy known as an appeal to nature. | |
Which of these states is farthest south? | [
"Idaho",
"Minnesota",
"Oklahoma",
"Illinois"
] | 2 | closed choice | grade2 | social science | geography | 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 south arrow is pointing. Oklahoma is farthest south. | ||
Not supported with pagination yet | Is the following trait inherited or acquired?
Clara can ride a bicycle. | [
"inherited",
"acquired"
] | 1 | Hint: Riding a bike well takes practice. | closed choice | grade4 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | People are not born knowing how to ride a bicycle. Instead, many people learn how to ride. So, riding a bicycle is an acquired trait. |
Select the reptile below. | [
"Tasmanian devil",
"olive toad",
"western gorilla",
"tokay gecko"
] | 3 | Reptiles have scaly, waterproof skin. Most reptiles live on land.
Reptiles are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A box turtle is an example of a reptile. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A Tasmanian devil is a mammal. It has fur and feeds its young milk.
Tasmanian devils are meat-eating marsupials. They live on the island of Tasmania, near Australia.
A western gorilla is a mammal. It has fur and feeds its young milk.
Gorillas live in groups called troops. The largest male in the troop is usually the le... |
Subsets and Splits
Validation Subject & Topic Summary
Reveals the distribution and count of images across different subjects, topics, and categories, highlighting the most prevalent combinations.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of entries across different topics where images are missing, allowing for a more representative analysis of text-only data.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of text entries across different topics, ensuring that each topic is proportionally represented, which is useful for further analysis or model training.
Random Sample by Topic Ratio
This query balances the dataset by randomly selecting a proportional number of items from each topic to create a balanced subset of 3000 items, revealing how well-represented each topic is in the dataset.
Topic Counts by Grade
Provides a breakdown of the number of questions by topic (physics, chemistry, biology, geography) for each grade level, revealing the distribution of question types.
Validation Category Counts
Counts the number of unique questions per category, helping to understand the distribution of questions across different categories.
SQL Console for derek-thomas/ScienceQA
Identifies categories, questions, and answers that appear more than four times in the validation dataset with images, highlighting common or repetitive entries.
ScienceQA Validation Grouped Data
Provides a count of images and overall occurrences for each combination of subject, topic, category, and answer, helping to identify popular or common configurations.
Train Data with Numeric Choices
This query identifies distinct rows in the dataset where one of the elements in the choices column contains a number and the image column is null, providing insight into data completeness and specific patterns in the choices.
Physics Train with Images and Lectures
Retrieves physics educational records with images and lectures for specific grade levels, providing basic filtering but offering limited analytical insight beyond data availability.
Physics Q&As with Images
Retrieves physics-related training examples with images for specific grade levels, providing basic filtered data but offering limited analytical insight beyond simple categorization.
Physics Questions Gr 2-6 With Images
Retrieves physics-related test items with images for specific grade levels, providing basic filtered data but offering limited analytical insights beyond simple data retrieval.
Filter Text-only Train Questions
Retrieves questions and related metadata from the dataset excluding those with images, offering basic data filtering.
Skills Without Images
Counts the number of skills where the image is missing, providing a basic overview of incomplete data.
Top 10 Hard Text Questions
Retrieves the top 10 longest questions without images, ordered by grade level in descending order, providing basic insight into potentially more complex questions.
SQL Console for derek-thomas/ScienceQA
Counts the occurrences of each category, question, and answer combination where an image is present, providing basic filtering on the dataset.
List ScienceQA Topics
Lists all unique topics in the dataset, which provides a basic overview of the categories present.
Cultural Questions Without Images
Retrieves 100 entries from the 'train' dataset where the image is missing and the topic is 'culture', providing basic filtering with limited analytical value.
Biology Skills for Grades 2 & 3
Lists unique skills and categories for biology topics in grades 2 and 3, providing basic filtering of the dataset.
Biology Qs for Grades 2 &
Retrieves all entries for grade 2 and grade 3 students focusing on the biology topic, providing a basic filtered view of the dataset.
Biology Grade 3 Questions Count
Counts the number of entries for grade 3 students in the biology topic, providing a basic count of data points.
Select Test Rows With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering without deep analytical value.
Test Images Query
This query retrieves a limited sample of rows where the image column is not null, providing basic filtering but minimal analytical value.
Test Data with Images
The query filters out rows where the image column is not null, providing a basic subset of the data but without much analytical insight.
Select Test Entries With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering but no deeper analytical insight.