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Which property do these four objects have in common? | [
"flexible",
"hard",
"slippery"
] | 2 | Select the best answer. | closed choice | grade5 | 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.
A hard object does not change shape when pressed or squeezed. The water slide and the ice hockey rink are hard, but the jello is not.
A slippery object is hard to hold onto or stand on. All four objects are slippery.
A flexible object can be folded o... | |
Which of the following could Fernando's test show? | [
"whether the filter was clogged",
"the amount of bacteria in the water before it was filtered",
"whether an inexpensive filter would become clogged more often"
] | 0 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | What do these two changes have in common?
water evaporating from a puddle
burning a piece of wood | [
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling."
] | 2 | closed choice | grade3 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Water evaporating from a puddle is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed.
Burning a piece of wood is a chemical change. When the wood burns, the type of matter in it changes. The wood turns black and g... | |
Complete the statement.
Graphite is (). | [
"a compound",
"an elementary substance"
] | 1 | The model below represents graphite. Graphite is used to make pencil lead. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify 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 ... | Use the model to determine whether graphite is an elementary substance or a compound.
Step 1: Interpret the model.
In the ball-and-stick model shown above, all of the balls are the same color:
. The legend shows that dark gray represents the chemical element with the atomic symbol C. C is the atomic symbol for the chem... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Brandon has a scar on his left knee. | [
"inherited",
"acquired"
] | 1 | closed choice | grade5 | 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 volume of a large trash can? | [
"18 gallons",
"18 fluid ounces",
"18 cups"
] | 0 | Select the best estimate. | closed choice | grade4 | 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 large trash can is 18 gallons.
18 fluid ounces and 18 cups are both too little. |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade2 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Poles that are different attract. So, these magnets will attract each other. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
What is the capital of Missouri? | [
"Jefferson City",
"Columbus",
"Indianapolis",
"Madison"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Jefferson City is the capital of Missouri. | |||
Not supported with pagination yet | What information supports the conclusion that Tara inherited this trait? | [
"Tara and her biological father wear sunglasses when they go outside.",
"Tara's neighbor has green eyes.",
"Tara has green eyes like her biological mother."
] | 2 | Read the description of a trait.
Tara has green eyes. | closed choice | grade8 | natural science | biology | Genes to traits | 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 from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
How could Vivian have anything insightful to say about foreign affairs? She grew up on a farm. | [
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences",
"ad hominem: an attack against the person making the argument, rather than the argument itself",
"bandwagon fallacy: the assumption that the popular choice is automatically correct"
] | 1 | closed choice | grade9 | 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 Vivian cannot be insightful about foreign affairs because she grew up on a farm. This is a personal attack that isn't relevant to whether she knows about foreign affairs. This illustrates a type of logical fallacy known as ad hominem. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 1 | Figure: Croatia.
The coast of Croatia often has cloudless skies during June, July, and August.
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.
The coast of Croatia often has cloudless skies during June, July, and August.
This passage tells you about the usual pattern of cloud cover on the coast of Croatia. This passage does not describe what the weather is like on a particular day. So, this passage describes the climate. | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
Tessa went down the slide face-first, like a penguin. | [
"metaphor",
"simile"
] | 1 | closed choice | grade4 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | Tessa went down the slide face-first, like a penguin.
The words Tessa and penguin are compared using the word like. So, the sentence uses a simile. | |
Based on the event chain, which event happens earlier in the legend? | [
"John Henry gets sick.",
"John Henry beats the machine."
] | 1 | This event chain shows the main events from the legend of John Henry. | closed choice | grade5 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | An event chain uses arrows to show the order of events. This event chain shows the main events from the legend of John Henry.
Follow the arrows to see the order of events. An arrow points from John Henry beats the machine in the contest to John Henry gets sick because he worked so hard during the contest. So, John Henr... | |
Which better describes the tide pool ecosystems in Tongue Point Marine Life Sanctuary? | [
"It has water that is poor in nutrients. It also has only a few types of organisms.",
"It has water that is rich in nutrients. It also has many different types of organisms."
] | 1 | Figure: Tongue Point Marine Life Sanctuary.
Tongue Point Marine Life Sanctuary is in western Washington State. The park is on the coast of the Pacific Ocean. It has many tide pool ecosystems. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A tide pool is a type of ecosystem. Tide pool ecosystems have the following features: daily flooding and draining of seawater, water that is rich in nutrients, and many different types of organisms. So, the tide pool ecosystems in Tongue Point Marine Life Sanctuary have water that is rich in nutrients. They also have m... | |
Which animal is also adapted to be camouflaged in a sandy desert? | [
"Namaqua chameleon",
"polar bear"
] | 0 | Thorny devils are lizards that live in the deserts of Australia. The is adapted to be camouflaged in a sandy desert.
Figure: thorny devil. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the thorny devil.
The thorny devil has a yellow-and-brown body. It is adapted to be camouflaged in a sandy desert. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The Namaqua chameleon has sand-colored scales covering its body. It ... | |
Not supported with pagination yet | Select the one animal that has all of the amphibian traits listed above. | [
"Amazon milk frogs have moist skin and live in South American rain forests. They hatch from eggs with no shells and begin their lives in water. As adults, Amazon milk frogs live in trees and eat insects.",
"Bengal tigers are one of the world's largest living cats. They have black, white, and orange fur. Female Be... | 0 | Amphibians are a group of animals with similar traits. The following traits can be used to identify amphibians:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells. Observe the animals and read the descriptions. | closed choice | grade4 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | 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.
Amphibians have the following traits:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to th... |
Not supported with pagination yet | What kind of sentence is this?
May I have a second serving of dessert? | [
"exclamatory",
"interrogative"
] | 1 | closed choice | grade4 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence asks something, and it ends with a question mark. It is an interrogative sentence. | |
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."
] | 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 | grade4 | 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. | Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same.
So, the strength of the magnetic force is the same in both pairs. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"John washed the windshield of his car even though he knew it would just get dirty again.",
"John washed the windshield of his car even though he knew the car would just get dirty again."
] | 0 | closed choice | grade6 | language science | pronouns | Pronouns and antecedents | 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 second answer choice contains a vague pronoun reference. The pronoun it could refer to the windshield or the car.
The first answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the car.
John washed the windshield of his car even though he knew the car would just get d... | |
What is the capital of Arizona? | [
"Tucson",
"Phoenix",
"Providence",
"Anchorage"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Phoenix is the capital of Arizona. | |||
Which better describes the Serengeti National Park ecosystem? | [
"It has warm winters. It also has a rainy season and a dry season.",
"It has year-round rain. It also has soil that is poor in nutrients."
] | 0 | 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 warm winters. It also has a rainy season and a dry season. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"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 ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade8 | 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... | The particles in both samples have the same average speed, but each particle in sample B has more mass than each particle 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 kinetic energy, sample B mus... | |
Not supported with pagination yet | Complete the sentence.
In this chemical reaction, carbon dioxide is a (). | [
"reactant",
"product"
] | 1 | This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Gasoline provides the energy that powers many car engines. In an engine, gasoline and oxygen are mixed together and burned, creating carbon dioxide gas and water vapor. This process releases energy that the engine uses to... | closed choice | grade7 | natural science | chemistry | Chemical reactions | Identify reactants and products | A chemical change occurs when new substances are formed from existing substances. This process is called a chemical reaction.
In a chemical reaction, one or more substances change into one or more different substances. During the reaction, the atoms of the original substances are rearranged to form other substances.
Th... | Read the underlined text carefully. Look for information about what happens to carbon dioxide in this chemical reaction.
Gasoline provides the energy that powers many car engines. In an engine, gasoline and oxygen are mixed together and burned, creating carbon dioxide gas and water vapor. This process releases energy t... |
What is the capital of West Virginia? | [
"Charleston",
"Cambridge",
"Huntington",
"Little Rock"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Charleston is the capital of West Virginia. | |||
Not supported with pagination yet | Is the following statement true or false?
The cytoplasm of an animal cell is made mostly of water. | [
"false",
"true"
] | 1 | true-or false | grade4 | natural science | biology | Cells | Cell part functions: true or false | The cytoplasm of an animal cell is made mostly of water.
This statement is true. All cells have cytoplasm. The cytoplasm has many cell parts inside it, but it is made mostly of water. | ||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 2.",
"The magnetic force is weaker in Pair 1."
] | 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. | closed choice | grade4 | 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. | Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same.
So, the strength of the magnetic force is the same in both pairs. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Wendy never lies. She told me herself, so it must be true. | [
"false dichotomy: an argument that presents only two choices when more options exist",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 1 | closed choice | grade8 | 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 Wendy is telling the truth because she says she never lies. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning. | |
What is the capital of Tennessee? | [
"Nashville",
"Saint Paul",
"Annapolis",
"Hartford"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | |||
Not supported with pagination yet | Which greeting is correct for a letter? | [
"dear Ms. Chang,",
"Dear Ms. Chang,"
] | 1 | closed choice | grade4 | language science | punctuation | Formatting | 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 second greeting is correct:
Its first word is capitalized, and it ends with a comma. Ms. Chang is capitalized because it is a proper noun. | |
What is the name of the colony shown? | [
"Delaware",
"Virginia",
"New York",
"Vermont"
] | 2 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New York.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
Which solution has a higher concentration of blue particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each blue 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 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.
... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Whenever the Duncans visit Florida, they see their relatives.",
"The Duncans see their relatives whenever they visit Florida."
] | 1 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | 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 they could refer to the Duncans or their relatives.
The Duncans see their relatives whenever they visit Florida.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning i... | |
Not supported with pagination yet | Complete the sentence.
The Eighth Amendment says that the government cannot use any punishments that are (). | [
"cruel and unusual",
"embarrassing",
"violent",
"expensive"
] | 0 | closed choice | grade4 | social science | civics | Government | The Bill of Rights | Today, the United States often uses punishments that are expensive, violent, or embarrassing. However, the Eighth Amendment says that the government cannot use any punishments that are "cruel and unusual." What makes a punishment "cruel or unusual"? The answer is not clear. The Eighth Amendment doesn't talk about speci... | ||
Not supported with pagination yet | What does the verbal irony in this text suggest?
While waiting for her search results, Shawna exclaimed, "My Internet connection is as speedy as a snail!" | [
"The Internet connection was very slow.",
"The Internet connection was very fast."
] | 0 | 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.
As speedy as a snail suggests that the Internet connection was very slow. A snail is not speedy, and neither was Shawna's Internet connection. | |
Not supported with pagination yet | Which figure of speech is used in this text?
The people of San Francisco weren't exactly celebrating after the devastating 1906 earthquake. | [
"antithesis",
"understatement"
] | 1 | closed choice | grade11 | 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 understatement, which involves deliberately representing something as less serious or important than it really is.
Weren't exactly celebrating is an understatement, since people wouldn't celebrate at all after a devastating earthquake. | |
What is the capital of Florida? | [
"Biloxi",
"Chicago",
"Tallahassee",
"Orlando"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Tallahassee is the capital of Florida. | |||
What can Adriana and Jared trade to each get what they want? | [
"Jared can trade his broccoli for Adriana's oranges.",
"Adriana can trade her tomatoes for Jared's broccoli.",
"Jared can trade his almonds for Adriana's tomatoes.",
"Adriana can trade her tomatoes for Jared's carrots."
] | 1 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Adriana and Jared open their lunch boxes in the school cafeteria. Neither Adriana nor Jared got everything that they wanted. The ... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Adriana wants broccoli. Jared wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
What is the capital of Ohio? | [
"Columbus",
"Lansing",
"Cincinnati",
"Lincoln"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Columbus is the capital of Ohio. | |||
Not supported with pagination yet | Which sentence is more formal? | [
"Merritt Electronics has a reputation for responding real quick to customer concerns and questions.",
"Merritt Electronics has a reputation for responding quickly to all customer concerns and questions."
] | 1 | closed choice | grade5 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses conversational language (real quick).
The first sentence uses formal language in place of the conversational language, so it is more formal overall. | |
What is the direction of this pull? | [
"away from the center of Earth",
"toward the center of Earth"
] | 1 | A mug falls off of a table. The force of Earth's gravity pulls it to the floor. | closed choice | grade4 | natural science | physics | Force and motion | Identify directions of forces | A force is a push or a pull that one object applies to another. Every force has a direction.
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 force of Earth's gravity pulls the mug downward. The direction of the pull is toward the center of Earth. | |
Not supported with pagination yet | Which figure of speech is used in this text?
We are not destined to be adversaries, but it is not guaranteed that we will be allies.
—President Bill Clinton, speech to the Russian parliament | [
"antithesis",
"apostrophe"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | 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 antithesis, the contrasting of opposing ideas within a parallel grammatical structure.
Clinton contrasts two clauses, we are not destined to be adversaries and it is not guaranteed that we will be allies. | |
Not supported with pagination yet | Which is a compound sentence? | [
"Mr. Duran peeled the tangerine and divided it into sections.",
"Pam and her brother rummaged through the boxes in the attic, but they couldn't find their father's childhood baseball glove."
] | 1 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction but.
Pam and her brother rummaged through the boxes in the attic, but they couldn't find their father's childhood baseball glove. | |
Not supported with pagination yet | Which is a complex sentence? | [
"Akira and her sisters drew a map of the United States and hung it on the wall.",
"Joe walked through Paris in a daze because he was still suffering from jet lag."
] | 1 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The first sentence is the complex sentence. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction because.
Joe walked through Paris in a daze because he was still suffering from jet lag. | |
Not supported with pagination yet | Complete the sentence.
Silver jewelry tarnishing is a (). | [
"physical change",
"chemical change"
] | 1 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Burning a piece of paper is a chemical change. When paper gets hot enough, it reacts with oxygen in the air and burn... | Metal turning less shiny over time is called tarnishing. Silver jewelry tarnishing is a chemical change. The silver reacts with sulfur in the air to form black tarnish. The tarnish is a different type of matter that was not there before the change. | |
Not supported with pagination yet | What do these two changes have in common?
pouring milk on oatmeal
sanding a piece of wood | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 0 | 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.
Pouring milk on oatmeal is a physical change. The oatmeal and milk form a creamy mixture. But making this mixture does not form a different type of matter.
Sanding a piece of wood is a physical change. The wood becomes smoother, but it is still made of the same type of matter.
Step 2: L... | |
Which term matches the picture? | [
"prokaryotic cell",
"eukaryotic cell"
] | 0 | Read the text.
The nucleus is an important feature of a eukaryotic cell. The nucleus is usually round and stores long coiled structures called chromosomes, which contain the cell's genetic material.
A prokaryotic cell, by contrast, doesn't have a nucleus. Instead, its chromosomes are loose in the cell, not surrounded b... | closed choice | grade6 | language science | vocabulary | Context clues | Determine the meaning of domain-specific words with pictures | A prokaryotic cell is a cell that does not have a nucleus. Its chromosomes are loose in the cell. | ||
Not supported with pagination yet | Select the elementary substance. | [
"phosphine (PH3)",
"zirconium (Zr)",
"potassium nitrate (KNO3)"
] | 1 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using chemical formulas | Every substance around you is made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds.
Every chemical element is represented by its own symbol. For s... | Look at the chemical formula for each substance, and count the number of symbols in the formula. Then, decide if the substance is an elementary substance. The chemical formula for phosphine contains two symbols: P for phosphorus and H for hydrogen. So, phosphine is made of two chemical elements bonded together. Substan... | |
Not supported with pagination yet | Select the solid. | [
"chair",
"water in a bathtub",
"milk"
] | 0 | closed choice | grade2 | natural science | physics | States of matter | Identify solids and liquids | Solid and liquid 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 shape of its own.
Some solids can be bent or broken easily. Others are hard to bend or break.
A glass cup is a solid. A sock is also a solid.
When matter is a li... | ||
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"neither; the samples have the same temperature",
"sample B",
"sample A"
] | 1 | 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... | The particles in both samples have the same average speed, but each particle in sample B has more mass than each particle 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 kinetic energy, sample B mus... | |
What is the capital of South Carolina? | [
"New Orleans",
"Charleston",
"Columbia",
"Baton Rouge"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Columbia is the capital of South Carolina. | |||
Not supported with pagination yet | Complete the statement.
Calcium oxide is (). | [
"a compound",
"an elementary substance"
] | 0 | Calcium oxide is used to make cement and steel. The chemical formula for calcium oxide is CaO. | closed choice | grade8 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | 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 ... | You can tell whether calcium oxide is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for calcium oxide, CaO, contains two ato... |
What is the capital of California? | [
"Jersey City",
"Los Angeles",
"Salt Lake City",
"Sacramento"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Sacramento is the capital of California. | |||
Which better describes the Amazon rain forest ecosystem? | [
"It has soil that is poor in nutrients. It also has many different types of organisms.",
"It has cold winters. It also has many different types of organisms."
] | 0 | Figure: Amazon rain forest.
The Amazon rain forest is a tropical rain forest ecosystem located in Brazil, Peru, and several other South American countries. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A tropical rain forest is a type of ecosystem. Tropical rain forests have the following features: year-round rain and warm temperatures, soil that is poor in nutrients, and many different types of organisms. So, the Amazon rain forest has soil that is poor in nutrients. It also has many different types of organisms. | |
Identify the question that Cora's experiment can best answer. | [
"Do radishes grown under bright light get bigger than radishes grown under dim light?",
"Do radish plants grown under bright light have more leaves than radish plants grown under dim light?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Cora planted 20 radish plants in a greenhouse, putting each plant in its own pot. She placed ten of the pots under bright light and the other ten pots under dim light. Cora watered all the plants twice a day. After two ... | 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 Idaho? | [
"Spokane",
"Nampa",
"Denver",
"Boise"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Boise is the capital of Idaho. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
The old wooden rocking chair that Judy brought home from the rummage sale was as comfortable as a bed of nails. | [
"verbal irony",
"pun"
] | 0 | closed choice | grade6 | language science | figurative-language | Literary devices | Classify 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.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
As comfortable as a bed of nails shows verbal irony because sitting on nails would not be comfortable. | |
Not supported with pagination yet | What do these two changes have in common?
dry ice sublimating and becoming a gas
grilling a hamburger | [
"Both are chemical changes.",
"Both are caused by heating.",
"Both are only physical changes.",
"Both are caused by cooling."
] | 1 | closed choice | grade7 | 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.
Dry ice is solid carbon dioxide. When dry ice gets warm, it changes state and becomes carbon dioxide gas. This change of state, from solid to gas, is called sublimation.
Dry ice becoming a gas is a physical change. A change of state does not form a different type of matter.
Grilling a h... | |
Not supported with pagination yet | Complete the sentence.
A piece of avocado turning brown is a (). | [
"physical change",
"chemical change"
] | 1 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Burning a piece of paper is a chemical change. When paper gets hot enough, it reacts with oxygen in the air and burn... | A piece of avocado turning brown is a chemical change. The avocado reacts with oxygen in the air to form a different type of matter.
If you scrape off the brown part of the avocado, the inside will still be green. The inside hasn't touched the air. So the chemical change hasn't happened to that part of the avocado. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Camille told her friends that Zeke was a typical Peter Pan type. | [
"a song",
"literature"
] | 1 | closed choice | grade7 | 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. | |
Select the organism in the same species as the bobcat. | [
"Felis nigripes",
"Lynx rufus",
"Felis margarita"
] | 1 | This organism is a bobcat. Its scientific name is Lynx rufus. | closed choice | grade5 | natural science | biology | 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 bobcat's scientific name is Lynx rufus.
Felis nigripes does not have the same scientific name as a bobcat. So, Lynx rufus and Felis nigripes are not in the same species.
Lynx rufus has the same scientific name as a bobcat. So, these organisms are in the same species.
Felis margarita does not have the same scientific ... | |
Not supported with pagination yet | How long is an ice skate? | [
"33 meters",
"33 centimeters"
] | 1 | 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 33 centimeters.
33 meters is too long. |
Not supported with pagination yet | Which letter closing is more formal? | [
"Sincerely,",
"Bye,"
] | 0 | closed choice | grade11 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The second letter closing is more formal. The other letter closing is more casual and suggests a familiarity with the person being written to. | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Dale lives on a mountain where the winds are strong most evenings. | [
"climate",
"weather"
] | 0 | 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 | What's the difference between weather and climate? | 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 text carefully.
Dale lives on a mountain where the winds are strong most evenings.
This passage tells you about the usual wind patterns where Dale lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Which continent is highlighted? | [
"Australia",
"Antarctica",
"North America",
"Europe"
] | 2 | closed choice | grade8 | social science | geography | Physical Geography | Oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is North America. | ||
Not supported with pagination yet | Which is softer? | [
"nylon track suit",
"diamond"
] | 0 | closed choice | grade2 | 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. | Soft is a property. A soft material changes shape when you press on it.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the nylon track suit is softer. If you squeeze nylon, it will change shape. | |
Not supported with pagination yet | What information supports the conclusion that Mona acquired this trait? | [
"Mona learned to identify insects by reading many books about insects.",
"Mona likes to look at butterflies and beetles."
] | 0 | Read the description of a trait.
Mona is good at identifying insects. | 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 | Which is bumpier? | [
"rock wall",
"rubber ball"
] | 0 | closed choice | grade2 | 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. | Bumpy is a property. A bumpy material is covered in lumps and bumps. It is not flat or smooth.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the rock wall is bumpier. If you touch a rock wall, it will feel bumpy and lumpy. | |
Which material is this spring made of? | [
"metal",
"wool"
] | 0 | closed choice | grade2 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the spring.
The spring is made of metal.
Metal is a tough material. It does not break easily. Springs made of metal can be stretched many times without breaking. | ||
Not supported with pagination yet | Would you find the word coyote on a dictionary page with the following guide words?
clutch - crude | [
"no",
"yes"
] | 1 | 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 coyote is between the guide words clutch - crude, it would be found on that page. | |
Not supported with pagination yet | What do these two changes have in common?
sauce burning on a stove
cooking a pancake | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 2 | closed choice | grade7 | 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.
Sauce burning on a stove is a chemical change. High temperatures case the sauce to react with oxygen in the air. The sauce turns black and no longer tastes good.
Cooking a pancake is a chemical change. Pancakes are made from pancake batter. A cooked pancake is a different type of matter... | |
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."
] | 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. | 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 2 are closer together than the magnets in Pair 1. So, the magnetic force is stronger in Pair 2 than in Pair 1. | |
Which of the following could Joseph's test show? | [
"how well the weather station would work when it was windy",
"if the weather station would work when the temperature was 50°C"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Which of the following organisms is the secondary consumer in this food web? | [
"green algae",
"water flea",
"rotifer"
] | 2 | Below is a food web from Little Rock Lake, a freshwater lake ecosystem in Wisconsin.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade5 | natural science | biology | Ecosystems | Interpret food webs I | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Secondary consumers eat primary consumers, and primary consumers eat producers. So, in a food web, secondary consumers have arrows pointing to them from primary consumers. Primary consumers have arrows pointing to them from producers.
The shiner has an arrow pointing to it from the water flea. The water flea is a prima... | |
Not supported with pagination yet | Which is a compound sentence? | [
"Our cat has been scratching himself more than usual, so I checked him for fleas.",
"The famous Venus de Milo statue was found on Milos, a volcanic Greek island in the Aegean Sea."
] | 0 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The first sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction so.
Our cat has been scratching himself more than usual, so I checked him for fleas. | |
What is the probability that a koi fish produced by this cross will have black eyes? | [
"0/4",
"3/4",
"4/4",
"1/4",
"2/4"
] | 0 | In a group of koi fish, some individuals have red eyes and others have black eyes. In this group, the gene for the eye color trait has two alleles. The allele for red eyes (E) is dominant over the allele for black eyes (e).
This Punnett square shows a cross between two koi fish. | 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... | ||
Not supported with pagination yet | Which text uses the word peruse in its traditional sense? | [
"Deion perused the nails in the hardware aisle for almost an hour, trying to figure out which type would be best for his project.",
"Before returning to the stockroom, Deion briefly perused the nails in the hardware aisle to see if anything needed to be restocked."
] | 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 peruse in its traditional sense: to examine in detail.
Deion perused the nails in the hardware aisle for almost an hour, trying to figure out which type would be best for his project.
The first text uses peruse in its nontraditional sense: to look through in a casual manner.
Before returning to the... | |
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each greenhouse",
"each greenhouse . . . the surroundings"
] | 0 | Two identical greenhouses were next to each other. There were solar panels on the roof of one greenhouse but not on the roof of the other greenhouse. This table shows how the temperature of each greenhouse changed over 2hours. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each greenhouse increased, which means that the thermal energy of each greenhouse increased. So, thermal energy was transferred from the surroundings to each greenhouse. | |
Not supported with pagination yet | What information supports the conclusion that Trent inherited this trait? | [
"Trent's mother cuts his hair every month.",
"Trent's parents have blond hair. They passed down this trait to Trent."
] | 1 | Read the description of a trait.
Trent has blond hair. | closed choice | grade6 | natural science | biology | Genes to traits | 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 from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Which of these states is farthest east? | [
"Louisiana",
"Wisconsin",
"Virginia",
"Nevada"
] | 2 | closed choice | grade3 | 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 east arrow is pointing. Virginia is farthest east. | ||
What can Wesley and Kylie trade to each get what they want? | [
"Kylie can trade her broccoli for Wesley's oranges.",
"Wesley can trade his tomatoes for Kylie's broccoli.",
"Kylie can trade her almonds for Wesley's tomatoes.",
"Wesley can trade his tomatoes for Kylie's carrots."
] | 1 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Wesley and Kylie open their lunch boxes in the school cafeteria. Neither Wesley nor Kylie got everything that they wanted. The ta... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Wesley wants broccoli. Kylie wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
Not supported with pagination yet | Using only these supplies, which question can Vicky investigate with an experiment? | [
"When placed in the sun, will eight ounces of water in a glass jar or eight ounces of water in a plastic cup get warmer?",
"When placed in the sun, will eight ounces of water in a closed jar or eight ounces of water in an open jar get warmer?",
"Will eight ounces of carbonated water or eight ounces of tap water... | 1 | Vicky leaves a glass jar of cold tea outside in full sunlight. When she goes to get it, she notices that the tea is warm. She wonders what factors affect how warm a liquid gets from sitting in the sunlight. So, she decides to design an experiment. She has the following supplies available:
two identical glass jars
two j... | 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... | |
What is the capital of Arkansas? | [
"Jefferson City",
"Fayetteville",
"Jackson",
"Little Rock"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
What can Felipe and Sanjay trade to each get what they want? | [
"Felipe can trade his tomatoes for Sanjay's broccoli.",
"Felipe can trade his tomatoes for Sanjay's carrots.",
"Sanjay can trade his almonds for Felipe's tomatoes.",
"Sanjay can trade his broccoli for Felipe's oranges."
] | 0 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Felipe and Sanjay open their lunch boxes in the school cafeteria. Neither Felipe nor Sanjay got everything that they wanted. The ... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Felipe wants broccoli. Sanjay wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
What is Diego known for? | [
"painting murals",
"writing about Mexico"
] | 0 | Read the passage about Diego Rivera.
Diego Rivera was born in Mexico. When he was a child, Diego liked to draw everywhere. He even drew on walls! Diego grew up to be an artist. He never stopped making art on walls. In fact, Diego is famous for his wall art, or murals.
Diego liked painting murals because both rich and p... | closed choice | grade2 | language science | reading-comprehension | Independent reading comprehension | Read and understand informational passages | Look at the passage. It tells you what Diego is known for.
Diego Rivera was born in Mexico. When he was a child, Diego liked to draw everywhere. He even drew on walls! Diego grew up to be an artist. He never stopped making art on walls. In fact, Diego is famous for his wall art, or murals. | ||
Which property do these three objects have in common? | [
"yellow",
"transparent",
"fuzzy"
] | 1 | Select the best answer. | closed choice | grade3 | 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. | Look at each object.
For each object, decide if it has that property.
Yellow is a color.
This color is yellow. None of the objects are yellow.
You can see clearly through a transparent object. All three objects are transparent.
A fuzzy object is covered in soft hair. None of the objects are fuzzy.
The property that all... | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Helena, Montana, got two inches of rain last night. | [
"climate",
"weather"
] | 1 | closed choice | grade5 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | 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 text carefully.
Helena, Montana, got two inches of rain last night.
This passage tells you about the precipitation in Helena last night. It describes the atmosphere at a certain place and time. So, this passage describes the weather. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
badger - bright | [
"burglar",
"bead"
] | 1 | closed choice | grade8 | 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 bead is between the guide words badger - bright, it would be found on that page. | |
Which animal's mouth is also adapted for gnawing? | [
"marmot",
"silky anteater"
] | 0 | Nutrias eat plant parts such as stems and branches. They eat by biting off small pieces at a time, or gnawing. The 's mouth is adapted for gnawing.
Figure: nutria. | 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 nutria.
The nutria has large front teeth. Its mouth is adapted for gnawing. The large front teeth can help the nutria break off pieces of food that it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The marmot has large front teeth. Its mouth is adapted... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
act - ate | [
"ability",
"aquarium"
] | 1 | closed choice | grade4 | 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 aquarium is between the guide words act - ate, it would be found on that page. | |
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."
] | 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 | 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,... | Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magnitude of the magnetic force between them is smaller.
There is a greater distance between the magnets in Pair 1 than in Pair 2. So, the magnitude of the magnetic force is smaller in Pair 1 than in Pair 2. | |
Based on the timeline, what can you infer about the new British war strategy beginning in 1778? | [
"The British attempted to convince American soldiers to change sides.",
"The British tried to get support from the French.",
"The British tried to control the Southern Colonies.",
"The British put their most most distinguished war generals in charge."
] | 2 | More than three years after the start of the war, the British changed their war strategy. Look at the timeline of Revolutionary War events from 1778 to 1781. Then answer the question below. | closed choice | grade8 | social science | us-history | The American Revolution | The Revolutionary War: conclusion and aftermath | Look at the underlined places where significant battles took place from 1778 to 1781.
The listed battles took place in South Carolina, Virginia, and other Southern Colonies. In 1778, the British began focusing on controlling the Southern Colonies.
Before 1778, the British strategy had focused on the Middle Colonies and... | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
civilian - coin | [
"claw",
"carried"
] | 0 | closed choice | 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 claw is between the guide words civilian - coin, it would be found on that page. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Since Westford College receives more applications for admission than Newton University, Westford College is evidently a better school. | [
"false dichotomy: an argument that presents only two choices when more options exist",
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"false causation: the assumption that because two things happened together, one caused the other"
] | 1 | closed choice | grade9 | 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 Westford College is better than Newton University because Westford College receives more applications. However, the popularity of a school does not necessarily indicate its quality. This illustrates a type of logical fallacy known as the bandwagon fallacy. | |
Not supported with pagination yet | Which figure of speech is used in this text?
The city of Oak Grove is currently experiencing a minor crisis. Its sanitation workers are on strike, and the garbage is piling up in the streets. | [
"paradox",
"oxymoron"
] | 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 an oxymoron, a joining of two seemingly contradictory terms.
Minor crisis is a contradiction, because minor means small or insignificant, and a crisis is a large problem. | |
Not supported with pagination yet | What do these two changes have in common?
sewing an apron
snowflakes forming in a cloud | [
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are caused by heating."
] | 0 | closed choice | grade7 | 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.
Sewing an apron is a physical change. The fabric and thread that make up the apron get a new shape, but the type of matter in each of them does not change.
Snowflakes forming in a cloud is a change of state. So, it is a physical change. Liquid water freezes and becomes solid, but it is ... | |
What is the capital of Hawaii? | [
"Pierre",
"Santa Fe",
"Sacramento",
"Honolulu"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | |||
What is the capital of Georgia? | [
"Charleston",
"Topeka",
"Atlanta",
"Montgomery"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Atlanta is the capital of Georgia. | |||
Not supported with pagination yet | What kind of sentence is this?
Jayden usually eats oatmeal for breakfast. | [
"exclamatory",
"declarative"
] | 1 | closed choice | grade5 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells about something, and it ends with a period. It is a declarative sentence. | |
What is the capital of West Virginia? | [
"Oklahoma City",
"Springfield",
"Charleston",
"Huntington"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Charleston is the capital of West Virginia. |
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.