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Which of the following fossils is younger? Select the more likely answer. | [
"ginkgo leaf",
"insect"
] | 1 | This diagram shows fossils in an undisturbed sedimentary rock sequence. | closed choice | grade8 | natural science | earth-science | Fossils | Compare ages of fossils in a rock sequence | A fossil is the preserved evidence of an ancient organism. Some fossils are formed from body parts such as bones or shells. Other fossils, such as footprints or burrows, are formed from traces of an organism's activities.
Fossils are typically found in sedimentary rocks. Sedimentary rocks usually form in layers. Over t... | Look again at the fossils in the rock sequence diagram.
Compare the positions of these fossils to determine which one is younger:
The insect fossil is in a shallower layer in the rock sequence than the ginkgo leaf fossil. So, the insect fossil is most likely younger than the ginkgo leaf fossil. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is weaker in Pair 2.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 1."
] | 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 | 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. | |
Which is this organism's scientific name? | [
"Ambystoma texanum",
"small-mouth salamander"
] | 0 | This organism is a small-mouth salamander. It is also called Ambystoma texanum. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Ambystoma texanum is written in italics. The first word is capitalized, and the second word is not.
So, Ambystoma texanum is the scientific name. | |
What is the capital of South Carolina? | [
"Columbia",
"Charleston",
"Biloxi",
"Baton Rouge"
] | 0 | 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 | Compare the motion of three blue jays. Which blue jay was moving at the lowest speed? | [
"a blue jay that moved 325kilometers east in 10hours",
"a blue jay that moved 345kilometers south in 10hours",
"a blue jay that moved 315kilometers south 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 315 kilometers moved the shortest distance in that time. So, that blue jay must have moved at the lowest... | |
Which solution has a higher concentration of blue particles? | [
"Solution A",
"neither; their concentrations are the same",
"Solution B"
] | 1 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade8 | 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 animal is also adapted to be camouflaged among green leaves? | [
"spiny orb-weaver",
"huntsman spider"
] | 1 | Green tree pythons live in the forests of Southeast Asia. The is adapted to be camouflaged among green leaves.
Figure: green tree python. | closed choice | grade5 | 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 green tree python.
The green tree python has green scales covering its body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
This huntsman spider has a green body. It is adapt... | |
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"
] | 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 | grade7 | 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 A has more mass than each particle in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
Because the particles in sample A have the higher average kinetic energy, sample A mus... | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
According to Mr. Buchanan's kids, his snoring is as quiet as a jackhammer. | [
"The snoring occurs in bursts.",
"The snoring is loud."
] | 1 | closed choice | grade7 | 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 quiet as a jackhammer suggests that the snoring is loud. A jackhammer is not quiet, and neither is Mr. Buchanan's snoring. | |
Which is this organism's common name? | [
"Asian tiger mosquito",
"Aedes albopictus"
] | 0 | This organism is an Asian tiger mosquito. It is also called Aedes albopictus. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Aedes albopictus is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Aedes albopictus is the organism's scientific name. So, you know that Asian tiger mosquito is the common name. | |
Not supported with pagination yet | Select the one true statement. | [
"An animal cell has both a cell wall and chloroplasts.",
"The nucleus of a plant cell has chromosomes.",
"The cell membrane of an animal cell uses sunlight to make sugar."
] | 1 | closed choice | grade7 | natural science | biology | Cells | Compare cells and cell parts | |||
In this food chain, the bison is a consumer. Why? | [
"It makes its own food.",
"It eats another organism."
] | 1 | This diagram shows a food chain from a grassland ecosystem in Wyoming. | 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 bison is a consumer because it eats another organism. The bison in this food chain eats the wild oat. | |
Which animal's feet are also adapted for sticking to smooth surfaces? | [
"Mediterranean tree frog",
"platypus"
] | 0 | Red-eyed tree frogs live in the rain forests of Central America. They spend most of their lives in trees. The feet of the tree frog are adapted to stick to the smooth surfaces of leaves.
Figure: red-eyed tree frog. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | 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 feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the red-eyed tree frog.
The red-eyed tree frog has wide, sticky toes. Its feet are adapted for sticking to smooth surfaces. The red-eyed tree frog uses its toes to walk on the smooth surfaces of leaves without slipping.
Now look at each animal. Figure out which animal has a similar adaptation.
Th... | |
Which type of relationship is formed when a Guinea worm lives in a person's body? | [
"mutualistic",
"commensal",
"parasitic"
] | 2 | Read the passage. Then answer the question.
Guinea worms are a type of roundworm. Immature Guinea worms live in freshwater, and they are so tiny that they are visible only with a microscope. If a person drinks water that contains a worm, the worm is not digested. Instead, it can take refuge in the person's body and gr... | closed choice | grade7 | natural science | biology | Ecological interactions | Classify symbiotic relationships | When two organisms of different species interact in a way that affects one or both organisms, they form a symbiotic relationship. The word symbiosis comes from a Greek word that means living together. Scientists define types of symbiotic relationships based on how each organism is affected.
This table lists three commo... | When a Guinea worm lives in a person's body, the worm gets a safe place to live and grow. So, the Guinea worm benefits from its relationship with the person.
The worm creates a painful wound that can become infected. So, the person is harmed by the relationship with the worm.
Since the worm benefits and the person is h... | |
Not supported with pagination yet | What do these two changes have in common?
melting wax
snowflakes forming in a cloud | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by heating."
] | 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.
Melting wax is a change of state. So, it is a physical change. The wax changes from solid to liquid. But it is still made of the same type of matter.
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 still ... | |
Not supported with pagination yet | Is a piano a good or a service? | [
"a service",
"a good"
] | 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 a piano is a good or a service, ask these questions:
Is a piano something you can touch? Yes.
Is a piano a job you might pay someone else to do? No.
So, a piano is a good. | |
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"***The Strongest Man in the World***",
"\"The Strongest Man in the World\""
] | 0 | closed choice | grade6 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, article, or short story should be in quotation marks.
"You Are My Sunshine" | A movie should be in italics.
The correct title is **The Strongest Man in the World**. | |
Not supported with pagination yet | The donkeys move the carts at the same speed. Which cart is pulled with a larger force? | [
"a cart holding 64 pounds",
"a cart holding 90 pounds"
] | 1 | Two donkeys pull carts from the farmhouse to the yard. The carts are the same. Each cart is holding different tools. | closed choice | grade2 | natural science | physics | Force and motion | How do mass and force affect motion? | A force is a push or a pull.
A force can make an object start moving or stop an object that is moving. A force can also make an object speed up, slow down, or change direction.
Forces can be different sizes.
Think about trying to move a heavy object and a light object. Imagine you want to move them at the same speed. Y... | Look for the cart that is heavier.
A cart holding 90 pounds is heavier than a cart holding 64 pounds. So, the cart holding 90 pounds needs a larger force to start moving at the same speed as the other cart. |
What can Tanvi and Jeremiah trade to each get what they want? | [
"Tanvi can trade her tomatoes for Jeremiah's broccoli.",
"Jeremiah can trade his broccoli for Tanvi's oranges.",
"Jeremiah can trade his almonds for Tanvi's tomatoes.",
"Tanvi can trade her tomatoes for Jeremiah's carrots."
] | 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.
Tanvi and Jeremiah open their lunch boxes in the school cafeteria. Neither Tanvi nor Jeremiah got everything that they wanted. Th... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Tanvi wants broccoli. Jeremiah 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. | ||
Which statement describes the Cape Breton Highlands National Park ecosystem? | [
"It has mostly small plants.",
"It has long, cold winters and short, cool summers.",
"It has soil that is rich in nutrients."
] | 1 | Figure: Cape Breton Highlands National Park.
Cape Breton Highlands National Park is a taiga ecosystem in eastern Canada. It is mostly covered with taiga forests that are home to moose, bears, bald eagles, and other organisms. | 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 taiga is a type of ecosystem. Taigas have the following features: long, cold winters and short, cool summers, many evergreen trees, and soil that is poor in nutrients. So, the following statement describes the Cape Breton Highlands National Park ecosystem: long, cold winters and short, cool summers, many evergreen tr... | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 0 | 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 south pole of one magnet is closest to the north pole of the other magnet. Poles that are different attract. So, these magnets will attract each other. | |
Which country is highlighted? | [
"Saint Kitts and Nevis",
"Dominica",
"Barbados",
"Antigua and Barbuda"
] | 3 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Antigua and Barbuda. | |||
Not supported with pagination yet | Which is the hardest? | [
"styrofoam packing peanuts",
"cobalt",
"linen handkerchief"
] | 1 | closed choice | grade4 | 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... | Hard is a property. A hard material keeps its shape when you press on it with your finger.
Look at each picture, one at a time. Imagine pushing on the material shown in each picture.
Of the choices, the cobalt is the hardest. If you press on a bar of cobalt, it will not change shape. | |
Not supported with pagination yet | Which type of sentence is this?
An avid reader, Zack attends weekly book club meetings, and he finishes several novels every month. | [
"simple",
"complex",
"compound",
"compound-complex"
] | 2 | closed choice | grade10 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is compound. It is made up of two independent clauses joined by the coordinating conjunction and.
An avid reader, Zack attends weekly book club meetings, and he finishes several novels every month. | |
Not supported with pagination yet | What information supports the conclusion that Janelle acquired this trait? | [
"Janelle likes to photograph birds at the zoo.",
"Janelle was not born knowing how to identify different bird calls. She had to learn this skill."
] | 1 | Read the description of a trait.
Janelle is good at identifying birds from their calls. | 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... | |
Which material is this clothespin made of? | [
"wood",
"glass"
] | 0 | closed choice | grade2 | 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 clothespin.
The clothespin is made of two different materials. The body is made of wood, and the spring is made of metal. | ||
Based on the timeline, which of the following statements is true? | [
"Hinduism began about 3,000 years before Islam.",
"Hinduism began about 1,500 years before Christianity.",
"Hinduism began about 500 years before Judaism."
] | 1 | The following timeline shows the approximate dates when several world religions began. Look at the timeline. Then answer the question below. | closed choice | grade6 | social science | world-history | World religions | Origins of Hinduism | |||
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear grandpa Nick,",
"Dear Grandpa Nick,"
] | 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. Grandpa Nick is capitalized because it is a proper noun. | |
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 stronger in Pair 2.",
"The magnetic force is stronger 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 | Would you find the word destroy on a dictionary page with the following guide words?
dam - dirty | [
"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 destroy is between the guide words dam - dirty, it would be found on that page. | |
Which of these colonies was in New England? | [
"South Carolina",
"New York",
"Rhode Island"
] | 2 | In the following questions, you will learn about the origins of the New England Colonies. The New England Colonies made up the northern part of the Thirteen Colonies, which were ruled by Great Britain in the 1600s and 1700s.
The population of New England included Native American groups, enslaved and free people of Afri... | closed choice | grade7 | social science | us-history | Colonial America | New England Colonies: founding and government | Look at the legend on the map.
The colonies are shaded by region, and the New England Colonies are all shaded the same color. They include these colonies:
The rest of the Thirteen Colonies were part of the Middle Colonies or the Southern Colonies. | ||
In this food chain, the mudminnow is a tertiary consumer. Why? | [
"It makes its own food.",
"It eats a secondary consumer.",
"It eats a tertiary consumer."
] | 1 | This diagram shows a food chain from Lake Superior, a freshwater ecosystem on the border of the United States and Canada. | closed choice | grade5 | 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.
The food chain begins with the producer. A producer can change matter that is not food into food. Many producers use carbon dioxide, water, and sunlight to make sugar. Ca... | In this food chain, the mudminnow is a tertiary consumer because it eats a secondary consumer. The secondary consumer in this food chain is the whirligig beetle. | |
Look at the picture. Which word best describes how this soup feels to the touch? | [
"warm",
"dusty",
"dry"
] | 0 | closed choice | grade2 | language science | writing-strategies | Descriptive details | Choose the sensory details that match the picture | When you write, you can use sensory details. These sense words help your reader understand what something looks, sounds, tastes, smells, or feels like.
Sensory Category | Description
Sight | These are words like bright, clean, and purple. A reader can imagine looking at these details.
Sound | These are words like hissi... | Look at the picture.
The word warm describes how this soup feels to the touch. You can tell by looking at the steam coming off the soup.
Dry and dusty can also describe how something feels to the touch. But they do not describe this soup. | ||
Not supported with pagination yet | Which is a compound sentence? | [
"The engine in the car makes a strange noise.",
"Grandma shelled the peas, but she left the beans for me."
] | 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 first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction but.
Grandma shelled the peas, but she left the beans for me. | |
Which of these organisms contains matter that was once part of the silver maple? | [
"parasol fungus",
"persimmon tree",
"gray fox"
] | 0 | Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia.
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 | grade8 | natural science | biology | Ecological interactions | Interpret food webs II | 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... | Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows that starts from the silver maple.There is one path matter can take from the silver maple to the bobcat: silver maple beaver bobcat. gray fox. The gray fox has two arrows pointing to it. One arrow... | |
Not supported with pagination yet | Which type of sentence is this?
An avid reader, Pablo attends weekly book club meetings, and he finishes several novels every month. | [
"compound-complex",
"compound",
"simple",
"complex"
] | 1 | closed choice | grade11 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is compound. It is made up of two independent clauses joined by the coordinating conjunction and.
An avid reader, Pablo attends weekly book club meetings, and he finishes several novels every month. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Brett can ride a motorcycle. | [
"inherited",
"acquired"
] | 1 | Hint: Riding a motorcycle well takes practice. | closed choice | grade3 | natural science | biology | 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 motorcycle. Instead, many people learn how to ride. So, riding a motorcycle is an acquired trait. |
Not supported with pagination yet | Which word does not rhyme? | [
"get",
"meet",
"feet"
] | 0 | closed choice | grade2 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the same sound.
The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings.
The words tip and meet don't rhyme. They end with different sounds. | The words feet and meet rhyme. They both end with the eet sound.
The word get does not rhyme. It ends with a different sound. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
mayor - mist | [
"mosquito",
"mechanic"
] | 1 | closed choice | grade5 | 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 mechanic is between the guide words mayor - mist, it would be found on that page. | |
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 | 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 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.
... | |
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 greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 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 sizes and 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.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Not supported with pagination yet | Using only these supplies, which question can Aubrey investigate with an experiment? | [
"Does the basketball bounce higher on a lawn or on a dirt path?",
"Do larger basketballs bounce higher than smaller basketballs on a brick patio?",
"Does the basketball bounce higher on gravel or on grass?"
] | 2 | Aubrey 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 | grade6 | 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... | |
Which country is highlighted? | [
"Cuba",
"Jamaica",
"Haiti",
"Saint Kitts and Nevis"
] | 1 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Jamaica. | |||
Not supported with pagination yet | The Fifth Amendment talks about the rights of people who are accused of crimes. For example, it says that a person cannot be put on trial for the same crime more than once. Which is another right protected by the Fifth Amendment? | [
"the right to lie to a judge",
"the right to apologize",
"the right to own weapons",
"the right to remain silent"
] | 3 | closed choice | grade4 | social science | civics | Government | The Bill of Rights | The Fifth Amendment says that a person cannot be put on trial for the same crime more than once. It also says that anyone accused of a crime has the right to remain silent. The right to remain silent is important when someone is accused of a crime. A person does not have to answer questions from the police. In fact, th... | ||
What is the capital of Arizona? | [
"Tucson",
"Rapid City",
"Salem",
"Phoenix"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Phoenix is the capital of Arizona. | |||
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 stronger in Pair 1.",
"The magnetic force is stronger 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 | 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 | Which figure of speech is used in this text?
It's an open secret that Brennan is writing a book based on his experiences living in Singapore. He never talks about it, but almost all his friends know. | [
"oxymoron",
"apostrophe"
] | 0 | 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 an oxymoron, a joining of two seemingly contradictory terms.
Open secret is a contradiction, because open describes something that is freely or publicly known, and a secret is hidden. | |
Not supported with pagination yet | Which figure of speech is used in this text?
And if you can't be with the one you love, honey,
Love the one you're with
—Stephen Stills, "Love the One You're With" | [
"chiasmus",
"anaphora"
] | 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 chiasmus, an expression in which the second half parallels the first but reverses the order of words.
The second half of the sentence reverses the order of the words with and love relative to the first half. | |
Not supported with pagination yet | Which figure of speech is used in this text?
I was just beginning to yawn with nerves . . . when I knew his tattarrattat at the door.
—James Joyce, Ulysses | [
"onomatopoeia",
"simile"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures 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.
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 onomatopoeia, a word that expresses a sound.
Tattarrattat represents the sound of a knock on a door. | |
Not supported with pagination yet | Which tense does the sentence use?
Mom will pitch the ball to Fred. | [
"future tense",
"present tense",
"past tense"
] | 0 | closed choice | grade4 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, pitch. The verb tells you about something that is going to happen. | |
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Soap is made in a factory. It is not a pure substance.",
"Sphalerite is a pure substance. It is not made by living things.",
"Hematite is not made by living things. It is a solid."
] | 0 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify minerals using properties | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Hematite is a mineral.
Sphalerite is a mineral.
Soap is made in a factory. But all minerals are formed in nature.
Soap is not a pure substance. But all minerals are pure substanc... | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Where Wayne lives, the wind often blows in from the nearby hills. | [
"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.
Where Wayne lives, the wind often blows in from the nearby hills.
This passage tells you about the usual wind pattern where Wayne lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
By the time Evelyn had finished explaining to Mr. Scott what had happened, her friends were laughingly referring to her as Scheherazade. | [
"Greek history",
"ancient legend"
] | 1 | closed choice | grade9 | 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 Scheherazade is ancient legend.
The Arabian Nights presents the ancient legend of how Scheherazade successfully postpones her imminent death by mesmerizing her captor with a thousand and one fascinating tales.
The allusion Scheherazade means a person who uses his or her arts to distract someo... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Evan knows how to type. | [
"acquired",
"inherited"
] | 0 | Hint: Typing takes practice. | closed choice | grade3 | natural science | biology | 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 type. Instead, many people learn how to type. So, typing is an acquired trait. |
Not supported with pagination yet | Compare the motion of two bowhead whales. Which bowhead whale was moving at a lower speed? | [
"a bowhead whale that moved 45kilometers in 10hours",
"a bowhead whale that moved 65kilometers in 10hours"
] | 0 | closed choice | grade2 | 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 two objects... | Look at the distance each bowhead whale moved and the time it took to move that distance.
One bowhead whale moved 45 kilometers in 10 hours.
The other bowhead whale moved 65 kilometers in 10 hours.
Notice that each bowhead whale spent the same amount of time moving. The bowhead whale that moved 45 kilometers moved a sh... | |
Which continent is highlighted? | [
"South America",
"Antarctica",
"North America",
"Europe"
] | 1 | 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 Antarctica. | ||
Not supported with pagination yet | The trucks begin to move at the same speed. Which truck needs a larger force to start moving? | [
"a mail truck carrying 250 pounds of mail",
"a mail truck carrying 350 pounds of mail"
] | 1 | Two mail trucks are loaded with mail. The trucks are the same. But they are carrying different amounts of mail. | closed choice | grade2 | natural science | physics | Force and motion | How do mass and force affect motion? | A force is a push or a pull.
A force can make an object start moving or stop an object that is moving. A force can also make an object speed up, slow down, or change direction.
Forces can be different sizes.
Think about trying to move a heavy object and a light object. Imagine you want to move them at the same speed. Y... | Look for the mail truck that is heavier.
A mail truck carrying 350 pounds of mail is heavier than a mail truck carrying 250 pounds of mail. So, the mail truck carrying 350 pounds needs a larger force to start moving at the same speed as the other mail truck. |
Not supported with pagination yet | Which sentence states a fact? | [
"The American Revolution went on for too many years.",
"Thousands of people were injured during the American Revolution."
] | 1 | 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.
Thousands of people were injured during the American Revolution.
It can be proved by researching how many people were injured during the American Revolution.
The second sentence states an opinion.
The American Revolution went on for too many years.
Too many shows what a person believes... | |
Not supported with pagination yet | Answer the riddle.
I grow on a tree.
You can eat me.
I may be red, yellow, or green.
What am I? | [
"an apple",
"a leaf"
] | 0 | closed choice | grade1 | language science | vocabulary | Comprehension strategies | What am I? | An apple grows on a tree.
You can eat an apple.
An apple may be red, yellow, or green. | ||
Which of these states is farthest north? | [
"Virginia",
"North Dakota",
"Kansas",
"Delaware"
] | 1 | closed choice | grade5 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the north arrow is pointing. North Dakota is farthest north. | ||
Which statement best describes the average monthly precipitation in Atlanta? | [
"October has the highest average precipitation.",
"Atlanta has a rainy season and a dry season.",
"Precipitation does not change much from month to month in Atlanta."
] | 2 | Use the graph to answer the question below. | closed choice | grade4 | 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. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Atlanta, look at the graph.
Choice "Oct" is incorrect.
Choice "October has the highest average precipitation." is incorrect.
Most other months have a slightly higher average precipitation than October.
Choice "Atlanta has a rainy season and a dry season." is incorrect.
Th... | |
Which property do these four objects have in common? | [
"sticky",
"slippery",
"soft"
] | 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 soft object changes shape when pressed or squeezed. All four objects are soft.
A sticky object can attach or stick to other things. The melted marshmallow is sticky, but the soccer shorts, the handkerchief, and the track suit are not.
A slippery ob... | |
Not supported with pagination yet | Which is a complete sentence? | [
"Coach Landry talked to her team before the game.",
"My ancestors are from Russia, they came here many years ago."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence, a fragment, or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb.
Knows the answer.
This is a sentence fragment. It is missing a subj... | Coach Landry talked to her team before the game is a complete sentence. The subject is Coach Landry, and the verb is talked. | |
Not supported with pagination yet | Which sentence states a fact? | [
"Cheeses made from cow's milk taste better than cheeses made from sheep's milk.",
"Cheese is often made from milk that comes from cows, sheep, or goats."
] | 1 | closed choice | grade3 | language science | writing-strategies | Opinion writing | Distinguish facts from opinions | A fact is something that can be proved to be true.
The month of July has more days than the month of June.
This is a fact. It can be proved by looking at a calendar and counting the number of days in each month.
An opinion is something that a person believes, thinks, or feels. An opinion cannot be proved true.
July is ... | The first sentence states a fact.
Cheese is often made from milk that comes from cows, sheep, or goats.
It can be proved by looking up information about cheese.
The second sentence states an opinion.
Cheeses made from cow's milk taste better than cheeses made from sheep's milk.
Better shows what a person believes, thin... | |
Is a stuffed tiger a solid or a liquid? | [
"a solid",
"a liquid"
] | 0 | closed choice | grade2 | natural science | physics | States of matter | Classify matter as solid or liquid | 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... | A stuffed tiger is a solid. A solid has a size and shape of its own.
When you hold a stuffed tiger in your hands, the stuffed tiger still has a size and shape of its own. | ||
What is the expected ratio of offspring with yellow peas to offspring with green peas? Choose the most likely ratio. | [
"4:0",
"0:4",
"2:2",
"3:1",
"1:3"
] | 2 | In a group of pea plants, some individuals have yellow peas and others have green peas. In this group, the gene for the pea color trait has two alleles. The allele for green peas (e) is recessive to the allele for yellow peas (E).
This Punnett square shows a cross between two pea plants. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios 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... | To determine how many boxes in the Punnett square represent offspring with yellow peas or green peas, consider whether each phenotype is the dominant or recessive allele's version of the pea color trait. The question tells you that the e allele, which is for green peas, is recessive to the E allele, which is for yellow... | |
Which country is highlighted? | [
"Nauru",
"Vanuatu",
"Solomon Islands",
"Fiji"
] | 1 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Vanuatu.
Does Vanuatu have any territorial disputes?
Vanuatu claims to own Matthew and Hunter Islands, which are disputed islands. In other words, multiple countries or groups claim that the islands rightfully belong to them.
France has controlled the islands since 1929. But shortly after gaining indepe... | |||
Not supported with pagination yet | Which text uses the word nauseous in its traditional sense? | [
"Everyone seemed to enjoy the magnolia-scented candle, but Derek found the smell rather nauseous.",
"Everyone seemed to enjoy the magnolia-scented candle, but it made Derek feel rather nauseous."
] | 0 | closed choice | grade9 | 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 Derek 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... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Johnny must not have enjoyed the casserole, or he would have asked for a second serving. | [
"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",
"ad hominem: an attack against the person making the argument, rather than the argument itself"
] | 0 | closed choice | grade10 | 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 Johnny enjoyed the casserole, then he would have eaten more. However, Johnny could have enjoyed the casserole without wanting a second serving. This illustrates a type of logical fallacy known as a false dichotomy. | |
Which property matches this object? | [
"flexible",
"translucent"
] | 1 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | 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. | Look at the object.
Think about each property.
A flexible object can be folded or bent without breaking easily. The marbles are not flexible.
A translucent object lets light through. But you cannot see clearly through a translucent object. The marbles are translucent. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample B",
"sample A",
"neither; the samples have the same temperature"
] | 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... | Each particle in sample A has more mass than each particle in sample B. The particles in sample A also have a higher average speed than the particles in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
Because the particles in sample A have the higher average ... | |
Is diorite a mineral? | [
"yes",
"no"
] | 1 | Diorite has the following properties:
naturally occurring
not a pure substance
no fixed crystal structure
not made by living things
solid | yes or no | grade5 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Properties are used to identify different substances. Minerals have the following properties:
It is a solid.
It is formed in nature.
It is not made by organisms.
It is a pure substance.
It has a fixed crystal structure.
If a substance has all five of these properties, then it is a mineral.
Look closely at the last thre... | Diorite does not have all the properties of a mineral. So, diorite is not a mineral. | |
What is the capital of Mississippi? | [
"Bismarck",
"Jackson",
"Little Rock",
"Springfield"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Jackson is the capital of Mississippi. | |||
Not supported with pagination yet | Would you find the word giant on a dictionary page with the following guide words?
glorious - grumble | [
"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 giant is not between the guide words glorious - grumble, it would not be found on that page. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
palm - poster | [
"prowl",
"pearl"
] | 1 | 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 pearl is between the guide words palm - poster, it would be found on that page. | |
Earth's organisms rely on the atmosphere for which of the following? | [
"carbon dioxide",
"sunlight"
] | 0 | Read the text. Then answer the question.
Earth is surrounded by a layer of gases called the atmosphere. The gases that make up the atmosphere sustain life on Earth. Living organisms take in and release some of these gases. Gases in the atmosphere also help insulate Earth from extreme temperatures and block some harmful... | closed choice | grade6 | natural science | earth-science | Climate change | The greenhouse effect | Read the text carefully. The underlined text below shows information about each answer choice.
Earth is surrounded by a layer of gases called the atmosphere. The gases that make up the atmosphere sustain life on Earth. Living organisms take in and release some of these gases. Gases in the atmosphere also help insulate ... | ||
Which of the following could Owen's test show? | [
"the amount of sunlight the roof would get throughout the year",
"which side of the roof got more sun over one day",
"how many solar panels could fit on each side of the roof"
] | 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 | 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 is the mass of a skateboard? | [
"7 ounces",
"7 tons",
"7 pounds"
] | 2 | Select the best estimate. | closed choice | grade5 | 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 skateboard is 7 pounds.
7 ounces is too light and 7 tons is too heavy. |
Not supported with pagination yet | Using only these supplies, which question can Sofia investigate with an experiment? | [
"Does the basketball bounce higher on a lawn or on a dirt path?",
"Does the basketball bounce higher on gravel or on grass?",
"Do larger basketballs bounce higher than smaller basketballs on a brick patio?"
] | 1 | Sofia 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 | grade6 | 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... | |
Which animal's skin is better adapted for protection against a predator with sharp teeth? | [
"armadillo lizard",
"kingsnake"
] | 0 | Nine-banded armadillos are adapted to defend their bodies against a predator with sharp teeth. They have hard scales covering much of their skin. When frightened, the can roll into a ball to protect the soft parts of its body.
Figure: nine-banded armadillo. | 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 nine-banded armadillo.
The nine-banded armadillo has hard scales on its skin. Its skin is adapted for protection against a predator with sharp teeth. The scales make it difficult for predators to hurt or kill the nine-banded armadillo.
Now look at each animal. Figure out which animal has a si... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Dillon spoke at the city council meeting, claiming the new recycling regulations were draconian. | [
"a fable",
"Greek history"
] | 1 | closed choice | grade10 | 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 draconian is Greek history.
Draco, a government official in seventh-century Athens, Greece, wrote a code of laws that called for severe punishments for even minor offenses.
The allusion draconian means harsh. | |
Which statement is true about the average monthly precipitation in Charlotte? | [
"Precipitation does not change much from month to month.",
"Charlotte has a rainy season and a dry season.",
"January is the month with the highest average precipitation."
] | 0 | Use the graph to answer the question below. | closed choice | grade4 | 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. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Charlotte, look at the graph.
Choice "Jan" is incorrect.
Choice "January is the month with the highest average precipitation." is incorrect.
Several other months have a slightly higher average precipitation than January.
Choice "Charlotte has a rainy season and a dry seas... | |
Which ocean is highlighted? | [
"the Atlantic Ocean",
"the Pacific Ocean",
"the Indian Ocean",
"the Arctic Ocean"
] | 1 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Pacific Ocean. | ||
Not supported with pagination yet | Which word does not rhyme? | [
"bone",
"hole",
"pole"
] | 0 | closed choice | grade2 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the same sound.
The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings.
The words tip and meet don't rhyme. They end with different sounds. | The words pole and hole rhyme. They both end with the ole sound.
The word bone does not rhyme. It ends with a different sound. | |
Can Daucus carota cells make their own food? | [
"yes",
"no"
] | 0 | This organism is Daucus carota. It is a member of the plant kingdom.
Daucus carota is commonly called a carrot plant. The stem and leaves of the carrot plant are green and grow above ground. The root is often orange and grows underground. When people say they eat carrots, they usually mean the root of the carrot plant! | yes or no | grade4 | natural science | biology | Classification | Describe, classify, and compare kingdoms | Daucus carota is a plant. Plant cells can make their own food. Plant cells make food using photosynthesis. | ||
Not supported with pagination yet | Is there a sentence fragment?
In the early 1800s, John Chapman—known today as Johnny Appleseed—planted acres of apple trees. The apples weren't meant for eating but instead were used to make cider. | [
"no",
"yes"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | There is not a sentence fragment. These are complete sentences because they express complete thoughts.
In the early 1800 s, John Chapman—known today as Johnny Appleseed—planted acres of apple trees. The apples weren't meant for eating but instead were used to make cider. | |
Not supported with pagination yet | Would you find the word pluck on a dictionary page with the following guide words?
pinch - print | [
"yes",
"no"
] | 0 | yes or no | 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 pluck is between the guide words pinch - print, it would be found on that page. | |
Not supported with pagination yet | Using only these supplies, which question can Dakota investigate with an experiment? | [
"Does a rubber inner tube sled or a plastic sled go faster down a hill?",
"Does a plastic sled or a wooden sled go down a hill faster?",
"Does a rubber inner tube sled go faster down a small hill or down a big hill?"
] | 0 | Dakota is sledding with her friends. She notices that some of them go faster down the sledding hill. She wonders what factors affect sledding speed. So, she decides to design an experiment. She has the following supplies available:
access to a small snow-covered hill at the park
a small plastic sled
a large plastic sle... | 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... | |
What is the capital of North Carolina? | [
"Raleigh",
"Harrisburg",
"Charlotte",
"Baton Rouge"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Gypsum is a solid. It is not made by living things.",
"Native gold is a pure substance. It is not made by living things.",
"Brass is made in a factory. It is a solid."
] | 2 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify minerals using properties | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Native gold is a mineral.
Gypsum is a mineral.
Brass is made in a factory. But all minerals are formed in nature.
So, brass is not a mineral. | |
Not supported with pagination yet | Which sentence states a fact? | [
"Thomas Edison's inventions are more interesting than Nikola Tesla's.",
"Thomas Edison invented the phonograph."
] | 1 | closed choice | grade5 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved to be true. Facts can be proved by observing, measuring, or studying information.
The flag of the United States has 13 stripes.
This is a fact. It can be proved by looking at the flag and counting the number of stripes.
An opinion is something that a person believes, thinks, or fe... | The second sentence states a fact.
Thomas Edison invented the phonograph.
It can be proved by reading a biography of Thomas Edison.
The first sentence states an opinion.
Thomas Edison's inventions are more interesting than Nikola Tesla's.
More interesting shows what a person believes, thinks, or feels. Another person m... | |
Not supported with pagination yet | Would you find the word vicious on a dictionary page with the following guide words?
variety - volley | [
"yes",
"no"
] | 0 | yes or no | grade5 | 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 vicious is between the guide words variety - volley, it would be found on that page. | |
Complete the statement.
Methanol is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents a molecule of methanol. Methanol is found in antifreeze, which is used in car engines to prevent certain liquids from freezing in cold weather. | 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 methanol is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the chemical e... | |
What is the capital of Washington? | [
"Olympia",
"Spokane",
"Salt Lake City",
"Anchorage"
] | 0 | 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 figure of speech is used in this text?
My mother always told me that "you can't afford cheap shoes." After having spent so much money repairing these boots, I'm beginning to believe her. | [
"paradox",
"oxymoron"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures 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 paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth.
You can't afford cheap shoes at first appears to be contradictory, as cheap shoes should by definition not be expensive. However, cheap shoes may need to be replaced or repaired more often than ... | |
Which of the following is a characteristic of tropical coral reefs? | [
"They have many large rocks called corals.",
"They are usually found in the deep ocean.",
"They have warm, salty water."
] | 2 | A tropical coral reef is a type of ecosystem in the ocean. Tropical coral reefs are found in warm, shallow water near the equator. They have many large formations called corals. Corals may look like rocks or plants, but they are actually structures made up of living animals and can grow over time.
Corals provide shelte... | closed choice | grade7 | natural science | literacy-in-science | Conservation | Coral reef biodiversity and human uses: explore a problem | |||
What is the probability that a human produced by this cross will have Huntington's disease? | [
"4/4",
"3/4",
"1/4",
"2/4",
"0/4"
] | 4 | This passage describes the Huntington's disease trait in humans:
Huntington's disease is a condition that causes the death of brain cells over time. This loss of cells interferes with brain function and may lead to uncontrolled movements, difficulty thinking, and changes in behavior.
In a group of humans, some individu... | 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 better describes the Gran Sabana ecosystem? | [
"It has warm winters. It also has soil that is poor in nutrients.",
"It has warm summers and warm winters. It also has year-round rain."
] | 0 | Figure: Gran Sabana.
The Gran Sabana is a savanna grassland ecosystem in southeastern Venezuela. | 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, the Gran Sabana has warm winters. It also has soil that is poor in nutrients. | |
Select the mammal below. | [
"rabbit",
"woodpecker"
] | 0 | Mammals have hair or fur and feed their young milk. A giraffe is an example of a mammal. | closed choice | grade3 | 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 woodpecker is a bird. It has feathers, two wings, and a beak.
Woodpeckers have strong beaks. They use their beaks to drill into wood to hunt for food.
A rabbit is a mammal. It has fur and feeds its young milk.
Rabbits live underground in burrows. A group of rabbit burrows is called a warren. | |
Not supported with pagination yet | Select the plant. | [
"Flamingos walk and fly.",
"Maple trees have star-shaped leaves."
] | 1 | closed choice | grade2 | natural science | biology | Classification | Identify plants and animals | Plants and animals are living things. Living things are called organisms.
Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can.
Animals also come in many shapes and sizes. Most animals can move around. A... | A maple tree is a plant. It has star-shaped leaves.
Maple trees have green leaves in the spring and summer. In the fall, their leaves turn yellow, red, or brown.
A flamingo is an animal. It walks and flies.
Flamingos live in large groups. These groups are called flocks. |
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.