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Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
tiger - triangle | [
"tail",
"today"
] | 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 today is between the guide words tiger - triangle, it would be found on that page. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Much to our shock, Colin chose to turn the other cheek when Ayana insulted him in a meeting. | [
"the Bible",
"a song"
] | 0 | closed choice | grade8 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion turn the other cheek is the Bible.
In the Bible, Jesus counsels his followers to resist retaliation. He says that if they are struck on the right cheek, they shouldn't lash out; instead, they should turn the other cheek toward their attacker.
The allusion turn the other cheek means to respond... | |
Not supported with pagination yet | Which is the softest? | [
"icicle",
"nylon shorts",
"plastic slide"
] | 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... | Soft is a property. A soft material changes shape when pressed or squeezed.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the nylon shorts are the softest. Nylon fabric changes shape when you press on it. | |
Which country is highlighted? | [
"Palau",
"Fiji",
"Tuvalu",
"Tonga"
] | 3 | closed choice | grade7 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tonga. | |||
Not supported with pagination yet | Is the following trait inherited or acquired?
Carter has naturally black hair. | [
"inherited",
"acquired"
] | 0 | 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... | Humans do not choose their natural hair color. Some people dye their hair. But this does not change their natural hair color.
Children get their natural hair color from their parents. So, Carter's hair color is an inherited trait. | |
Not supported with pagination yet | Would you find the word sorry on a dictionary page with the following guide words?
ship - slush | [
"yes",
"no"
] | 1 | yes or no | 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 sorry is not between the guide words ship - slush, it would not be found on that page. | |
Not supported with pagination yet | Which is a compound sentence? | [
"The subway runs beneath the streets of the city.",
"The sun is at its highest, so our shadows are at their shortest."
] | 1 | closed choice | grade5 | 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 so.
The sun is at its highest, so our shadows are at their shortest. | |
Which state is highlighted? | [
"Nebraska",
"Kansas",
"North Dakota",
"Illinois"
] | 0 | closed choice | grade5 | social science | geography | States | Identify states of the Midwest | This state is Nebraska. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
When Belle first joined the track team, she was afraid of jumping, but she got over that hurdle. | [
"pun",
"verbal irony"
] | 0 | closed choice | grade9 | 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 a pun, a word or phrase that humorously suggests more than one meaning.
Hurdle refers to an obstacle that one must overcome. It also refers to an object that a runner jumps over. | |
What is the name of the colony shown? | [
"Kentucky",
"Florida",
"Connecticut",
"Rhode Island"
] | 2 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Connecticut. | |||
Are water droplets a solid, a liquid, or a gas? | [
"a liquid",
"a gas",
"a solid"
] | 0 | closed choice | grade3 | natural science | physics | States of matter | Classify matter as solid, liquid, or gas | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | Water droplets are a liquid. A liquid takes the shape of any container it is in.
If you collect water droplets in a bucket, they will take the shape of the bucket. But the water droplets will still take up the same amount of space. | ||
Which animal's neck is also adapted for reaching high branches? | [
"dromedary camel",
"warthog"
] | 0 | Gerenuk eat leaves and twigs. The 's neck is adapted for reaching branches that are high above the ground.
Figure: gerenuk. | 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 neck is one example of an adaptation. Animals' necks can be adapted in different ways. For example, a large frilled neck might help an animal appear dangerous ... | Look at the picture of the gerenuk.
Now look at each animal. Figure out which animal has a similar adaptation.
The dromedary camel has a long neck. Its neck is adapted for reaching high branches.
The warthog has a short neck. Its neck is not adapted for reaching high branches. The warthog eats grasses, roots, and bulbs... | |
Not supported with pagination yet | Which bath towel has less thermal energy? | [
"the hotter bath towel",
"the colder bath towel"
] | 1 | Two 500-gram bath towels are identical except for their temperatures. | closed choice | grade5 | natural science | physics | Heat and thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two bath towels are made of the same material and have the same mass. So, the colder bath towel has less thermal energy. |
Not supported with pagination yet | Which text uses the word unique in its traditional sense? | [
"Dean bought his unique coffee table from a factory outlet store in Georgetown.",
"Dean custom ordered his unique coffee table from a master craftsman in Georgetown."
] | 1 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses unique in its traditional sense: being the only one of its kind.
Dean custom ordered his unique coffee table from a master craftsman in Georgetown.
The first text uses unique in its nontraditional sense: interesting or unusual. Dean's coffee table is an interesting style, but it was made in a facto... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
met - monk | [
"mass",
"mistake"
] | 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 mistake is between the guide words met - monk, it would be found on that page. | |
Which better describes the Scarborough Marsh ecosystem? | [
"It has land that is covered with water during most of the year. It also has soil that is poor in nutrients.",
"It has soil that is rich in nutrients. It also has other water ecosystems nearby."
] | 1 | Figure: Scarborough Marsh.
Scarborough Marsh is a wetland ecosystem in southern Maine. | 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 wetland is a type of ecosystem. Wetlands have the following features: land that is covered with water during most of the year, soil that is rich in nutrients, and other water ecosystems nearby. So, Scarborough Marsh has soil that is rich in nutrients. It also has other water ecosystems nearby. | |
Which specific humidity level was measured within the outlined area shown? | [
"16 grams of water vapor per kilogram of air",
"11 grams of water vapor per kilogram of air",
"21 grams of water vapor per kilogram of air"
] | 2 | The map below shows humidity in the lower atmosphere on April 9, 2016. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in Africa on that day.
Look at the map. Then, answer the question below.
Data source: United States N... | closed choice | grade8 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show specific humidity, a measurement of the amount of water vapor in the air.
The map's legend tells you the specific humidity level that each color represents. Colors on the left in th... | Look at the colors shown within the outlined area. Then, use the legend to determine which specific humidity levels those colors represent.
The legend tells you that this air mass contained air with specific humidity levels between 20 and 24 grams of water vapor per kilogram of air.
21 grams of water vapor per kilogram... | |
Which is this organism's scientific name? | [
"Cathartes aura",
"turkey vulture"
] | 0 | This organism is a turkey vulture. It is also called Cathartes aura. | closed choice | grade5 | natural science | biology | 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,... | Cathartes aura is written in italics. The first word is capitalized, and the second word is not.
So, Cathartes aura is the scientific name. | |
What is the direction of this pull? | [
"away from her hand",
"toward her hand"
] | 1 | A teacher and student find a book to read. The teacher uses a force to pull the book off of the bookshelf. | 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 teacher pulls the book. The direction of the pull is toward her hand. | |
Not supported with pagination yet | Which figure of speech is used in this text?
"This box weighs a ton!" Juan panted. "Suzie, do you mind helping me carry it up the stairs?" | [
"paradox",
"hyperbole"
] | 1 | closed choice | grade10 | 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 hyperbole, an obvious exaggeration that is not meant to be taken literally.
A ton is an exaggeration, since it would be impossible for one or two people to carry a box that weighed a ton, which is 2000 pounds. | |
Does Oxalis acetosella have cells that have a nucleus? | [
"no",
"yes"
] | 1 | This organism is Oxalis acetosella. It is a member of the plant kingdom.
Oxalis acetosella is commonly called wood sorrel. A wood sorrel plant has heart-shaped leaves and white flowers. Its flowers and leaves can fold up at night. Folding up helps protect the flowers and leaves from being eaten by insects. | yes or no | grade4 | natural science | biology | Classification | Describe, classify, and compare kingdoms | In the past, scientists classified living organisms into two groups: plants and animals. Over the past 300 years, scientists have discovered many more types of organisms. Today, many scientists classify organisms into six broad groups, called kingdoms.
Organisms in each kingdom have specific traits. The table below sho... | Oxalis acetosella is a plant. Plant cells have a nucleus. | |
Not supported with pagination yet | In which kind of place are buses, trains, and subways more common? | [
"an urban area",
"a suburban area"
] | 0 | closed choice | grade2 | social science | geography | Geography | Compare urban, suburban, and rural areas | People around the world live in three main kinds of places: urban areas, suburban areas, and rural areas.
An urban area is a city. It has many people and businesses. The buildings are close to each other. The buildings are often tall and have many floors. Since there are so many people, traffic is usually bad. People w... | Buses, trains, and subways are more common in urban areas. Since there are so many people, traffic is usually bad. People will walk or take the bus, train, or subway to avoid traffic. | |
Not supported with pagination yet | Is a scooter a good or a service? | [
"a good",
"a service"
] | 0 | closed choice | grade2 | social science | economics | Economics | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether a scooter is a good or a service, ask these questions:
Is a scooter something you can touch? Yes.
Is a scooter a job you might pay someone else to do? No.
So, a scooter is a good. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Lillian thinks Mr. Stevenson is a Luddite because he doesn't own a cell phone. | [
"British history",
"the Bible"
] | 0 | 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 Luddite is British history.
In the early nineteenth century, factories were replacing the jobs of craftsmen. Some of these craftsmen banded together to destroy the new machinery; those who did so were called Luddites.
The allusion Luddite means a person opposed to new technology. | |
What is the capital of Idaho? | [
"Salem",
"Santa Fe",
"Nampa",
"Boise"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Boise is the capital of Idaho. | |||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Kevin showed them the error on his receipt, and he received a refund.",
"Kevin showed the customer service representatives the error on his receipt, and he received a refund."
] | 0 | 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 second answer choice contains a vague pronoun reference. The pronoun them is used without its antecedent.
The first answer choice shows a possible correction for the vague pronoun reference. Them has been replaced with the customer service representatives.
Kevin showed the customer service representatives the error... | |
Which property do these four objects have in common? | [
"fragile",
"salty",
"shiny"
] | 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.
Potato chips have a salty taste. The trombone is not salty.
A fragile object will break into pieces if you drop it. The gold ring and the sapphire are not fragile.
A shiny object reflects a lot of light. You can usually see your reflection in a shiny... | |
Not supported with pagination yet | What kind of sentence is this?
Give Raymond a tour of the building and then take him to Mr. Hatfield's office. | [
"exclamatory",
"imperative",
"interrogative"
] | 1 | closed choice | grade6 | 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, and it always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An interrogative sentence is a question, and it always ends with a question mark.
Do you have any plans for the upcoming... | The sentence tells someone to do something, so it is an imperative sentence. Here, it ends with a period. | |
Select the organism in the same genus as the mantled howler. | [
"Alouatta palliata",
"Lontra canadensis",
"Hystrix cristata"
] | 0 | This organism is a mantled howler. Its scientific name is Alouatta palliata. | 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 mantled howler's scientific name is Alouatta palliata. The first word of its scientific name is Alouatta.
Lontra canadensis is in the genus Lontra. The first word of its scientific name is Lontra. So, Lontra canadensis and Alouatta palliata are not in the same genus.
Hystrix cristata is in the genus Hystrix. The firs... | |
Not supported with pagination yet | Which text uses the word peruse in its traditional sense? | [
"Before returning to the stockroom, Hakim briefly perused the nails in the hardware aisle to see if anything needed to be restocked.",
"Hakim perused the nails in the hardware aisle for almost an hour, trying to figure out which type would be best for his project."
] | 1 | 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 first text uses peruse in its traditional sense: to examine in detail.
Hakim perused the nails in the hardware aisle for almost an hour, trying to figure out which type would be best for his project.
The second text uses peruse in its nontraditional sense: to look through in a casual manner.
Before returning to the... | |
Not supported with pagination yet | What do these two changes have in common?
an iceberg melting slowly
dry ice sublimating and becoming a gas | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes."
] | 1 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
An iceberg melting is a change of state. So, it is a physical change. An iceberg is made of frozen water. As it melts, the water changes from a solid to a liquid. But a different type of matter is not formed.
Dry ice is solid carbon dioxide. When dry ice gets warm, it changes state and ... | |
Which property do these two objects have in common? | [
"scratchy",
"blue"
] | 1 | Select the better answer. | closed choice | grade2 | 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.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A scratchy object is rough and itchy against your skin. The slippers are not scratchy.
Blue is a color.
This color is blue. Both objects are blue.
The property that both objects have in common is blue. | |
Not supported with pagination yet | Is there a surplus or a shortage of hats? | [
"shortage",
"surplus"
] | 1 | A store has 20 new hats for sale. The hats cost $35 each. At that price, 15 people want to buy one. | closed choice | grade5 | social science | economics | Supply and demand | Identify shortage and surplus | There is a surplus if there is too much for sale at a given price.
There is a shortage if there is not enough for sale at a given price.
Surpluses and shortages usually happen when people who are selling goods or services charge too much or too little.
When the price is too high, consumers will not want to buy much of ... | At the current price, there are too many hats for sale. There are 20 hats for sale, but only 15 people want to buy one.
So, there is a surplus of hats. The store will not get any money for the leftover hats. |
Not supported with pagination yet | Which text uses the word literally in its traditional sense? | [
"Eve adores the classic Renaissance style of the Rialto Bridge in Venice. She was surprised to learn that the bridge remains functional even though it is literally hundreds of years old.",
"Eve adores the classic Renaissance style of the Rialto Bridge in Venice. She was surprised to learn that the bridge remains ... | 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 first text uses literally in its traditional sense: in a factual, non-exaggerated way.
Eve adores the classic Renaissance style of the Rialto Bridge in Venice. She was surprised to learn that the bridge remains functional even though it is literally hundreds of years old.
The second text uses literally in its nontr... | |
Not supported with pagination yet | Which is a compound sentence? | [
"I pretend to be a knight, and Brenna pretends to be an astronaut.",
"Tomorrow the actors will practice their lines onstage."
] | 0 | closed choice | grade4 | 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 and.
I pretend to be a knight, and Brenna pretends to be an astronaut. | |
Select the mammal below. | [
"Galapagos giant tortoise",
"zebra"
] | 1 | Mammals have hair or fur and feed their young milk. A koala 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 zebra is a mammal. It has hair and feeds its young milk.
Zebras eat mostly grass. But they sometimes eat other types of plants, such as shrubs or tree bark.
A Galapagos giant tortoise is a reptile. It has scaly, waterproof skin.
Galapagos tortoises live on the Galapagos Islands in the Pacific Ocean. They can live to ... | |
Not supported with pagination yet | Would you find the word field on a dictionary page with the following guide words?
fasten - friendly | [
"yes",
"no"
] | 0 | yes or no | grade7 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since field is between the guide words fasten - friendly, it would be found on that page. | |
Not supported with pagination yet | Select the animal. | [
"Fir trees have green leaves.",
"Almond trees can grow many small flowers.",
"Toucans eat mostly fruit.",
"Apple trees can grow fruit."
] | 2 | closed choice | grade3 | 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 fir tree is a plant. It has green leaves.
The leaves of fir trees are called needles.
An almond tree is a plant. It can grow many small flowers.
Almonds were first grown by people living near the Mediterranean Sea.
A toucan is an animal. It eats mostly fruit.
A toucan is a bird with a large beak. A toucan's beak can ... | |
Not supported with pagination yet | What information supports the conclusion that Paul inherited this trait? | [
"Paul and his father both have dark hair.",
"Paul's parents have pale skin. They passed down this trait to Paul."
] | 1 | Read the description of a trait.
Paul has pale skin. | 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.... | |
Not supported with pagination yet | According to Newton's third law, what other force must be happening? | [
"The suitcase is pulling on Sean.",
"The suitcase is pushing on Sean."
] | 0 | Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force.
Consider the following force:
Sean is pulling on a full suitcase. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Predict forces using Newton's third law | According to Newton's third law, for every force, there is an equal and opposite force. This means that if one object is applying a force on a second object, the second object must also be applying a force on the first object, but in the opposite direction.
For example, if your hand is pushing down on a table, the tabl... | Sean is pulling on the suitcase. So, Newton's third law tells you that the suitcase is pulling on Sean. |
Not supported with pagination yet | What information supports the conclusion that Arianna inherited this trait? | [
"Arianna and her mother both have short hair.",
"Arianna's parents were born with wavy hair. They passed down this trait to Arianna."
] | 1 | Read the description of a trait.
Arianna has wavy 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 property matches this object? | [
"rough",
"fuzzy"
] | 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 rough object feels scratchy when you touch it. The tennis ball is not rough.
A fuzzy object is covered in soft hair. The tennis ball is fuzzy. | |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"55°F",
"75°F",
"65°F"
] | 0 | closed choice | grade3 | natural science | units-and-measurement | Weather and climate | Read a thermometer | A thermometer is a tool that measures temperature. Temperature can be measured in degrees. The symbol for degrees is °.
Some thermometers measure temperature in degrees Fahrenheit (°F). Fahrenheit is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Fa... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid is halfway between 50 and 60. So, the temperature is 55°F. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater 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 | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magni... | |
Not supported with pagination yet | Which sentence states a fact? | [
"In most respects, stars are more interesting than planets.",
"In terms of size and age, the Sun is an average star."
] | 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.
In terms of size and age, the Sun is an average star.
It can be proved by looking up information about the Sun and other stars.
The second sentence states an opinion.
In most respects, stars are more interesting than planets.
More interesting shows what a person believes, thinks, or fe... | |
Which country is highlighted? | [
"Solomon Islands",
"Vanuatu",
"the Federated States of Micronesia",
"the Marshall Islands"
] | 0 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Solomon Islands. | |||
Not supported with pagination yet | Which tense does the sentence use?
The janitor will clean the floors in the evening. | [
"present tense",
"past tense",
"future tense"
] | 2 | 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, clean. The verb tells you about something that is going to happen. | |
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 1.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 2."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | 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 farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Complete the sentence.
Sediment settling to the bottom of a muddy puddle is a (). | [
"physical change",
"chemical change"
] | 0 | closed choice | grade5 | natural science | chemistry | Physical and chemical change | 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 new molecules. The types of molecules in matter before an... | Loose matter such as sand and dirt is called sediment. Sediment settling to the bottom of a muddy puddle is a physical change.
The sediment sinks, and the water above becomes clearer. This separates the water from the sediment. But separating a mixture does not form a different type of matter. | |
Which animal is also adapted to be camouflaged in a sandy desert? | [
"blue poison dart frog",
"flat-tail horned lizard"
] | 1 | Camels live in dry places such as deserts. The is adapted to be camouflaged in a sandy desert.
Figure: camel. | 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 camel.
The camel has sand-colored fur covering its skin. 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 flat-tail horned lizard has sand-colored scales covering its body. ... | |
Identify the question that Victoria and Nick's experiment can best answer. | [
"Does Victoria's snowboard slide down a hill in less time when it has a layer of wax or when it does not have a layer of wax?",
"Does Victoria's snowboard slide down a hill in less time when it has a thin layer of wax or a thick layer of wax?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Victoria applied a thin layer of wax to the underside of her snowboard and rode the board straight down a hill. Then, she removed the wax and rode the snowboard straight down the hill again. She repeated the rides four ... | 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... | ||
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"
] | 0 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in sample B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average ... | |
Which animal's legs are also adapted for wading? | [
"African penguin",
"gray heron"
] | 1 | Flamingos live near marshes, rivers, and oceans. They eat small crustaceans that live in shallow water. Flamingos get their food by walking through water, or wading.
The 's legs are adapted for wading. They are lightweight and keep the bird's body above the water.
Figure: flamingo. | closed choice | grade5 | 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.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the flamingo.
Long legs help the flamingo keep its body above the surface of the water while wading. Thin legs are easier to move through the water.
Now look at each animal. Figure out which animal has a similar adaptation.
The gray heron has long, thin legs. Its legs are adapted for wading.
The ... | |
Not supported with pagination yet | Using only these supplies, which question can Alvin investigate with an experiment? | [
"Does a small cloth towel or a large cloth towel dry faster when hung in the backyard?",
"Do cloth towels dry faster if they are hung in the laundry room or in the backyard?",
"When hung in the laundry room, do black cloth towels or white cloth towels dry more quickly?"
] | 1 | After Alvin cleans up a spill, he hangs a wet cloth towel in the laundry room. Two hours later, he notices that the towel has partially dried. He wonders what factors affect how cloth dries. So, he decides to design an experiment. He has the following supplies available:
two identical white cloth towels
water
a clothes... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | Would you find the word iodine on a dictionary page with the following guide words?
intend - its | [
"no",
"yes"
] | 1 | yes or no | 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 iodine is between the guide words intend - its, 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 magnetic force is weaker in Pair 2.",
"The magnetic force is weaker in Pair 1.",
"The strength of the magnetic force is the same in both pairs."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | 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.
You c... | Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
I'm never setting foot in any seafood restaurant again. We just had a ridiculously overpriced dinner at Troy's Seafood Hut, and I have no interest in repeating that experience. | [
"hasty generalization: a very broad claim based on very little evidence",
"bandwagon fallacy: the assumption that the popular choice is automatically correct"
] | 0 | closed choice | grade6 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that all seafood restaurants are overpriced. However, even though one seafood restaurant was overpriced, that doesn't necessarily mean that all seafood restaurants are overpriced. This illustrates a type of logical fallacy known as a hasty generalization. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Despite Danielle's insistence that she would raise Cain if we ever got lost, we decided to try taking a shortcut. | [
"Greek mythology",
"the Bible"
] | 1 | closed choice | grade11 | 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.
The protean nature of the disease makes it difficult to diagnose.
The word protean is an allusion to the sea god Proteus in Gree... | The source of the allusion raise Cain is the Bible.
In the Bible, Adam and Eve's son Cain murders his brother in a jealous rage.
The allusion raise Cain means to resort to violence. | |
What is the capital of Arkansas? | [
"Little Rock",
"Oklahoma City",
"Austin",
"Fayetteville"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
Select the organism in the same genus as the Grevy's zebra. | [
"Macropus giganteus",
"Equus zebra",
"Macropus rufus"
] | 1 | This organism is a Grevy's zebra. Its scientific name is Equus grevyi. | closed choice | grade4 | 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 Grevy's zebra's scientific name is Equus grevyi. The first word of its scientific name is Equus.
Macropus rufus is in the genus Macropus. The first word of its scientific name is Macropus. So, Macropus rufus and Equus grevyi are not in the same genus.
Equus zebra is in the genus Equus. The first word of its scientifi... | |
Is the following statement about our solar system true or false?
The volume of Saturn is more than ten times the volume of Uranus. | [
"false",
"true"
] | 1 | Use the data to answer the question below. | true-or false | grade8 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice.
The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | To determine if this statement is true, calculate the value of ten times the volume of Uranus.
Then compare the result to the volume of Saturn. The volume of Saturn is 8.27 x 10^14 km^3, which is greater than 6.83 x 10^14 km^3. So, the volume of Saturn is more than ten times the volume of Uranus. | |
What is the name of the colony shown? | [
"Rhode Island",
"Massachusetts",
"Connecticut",
"New Hampshire"
] | 2 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Connecticut. | |||
What is the capital of Idaho? | [
"Nampa",
"Madison",
"Boise",
"Denver"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Boise is the capital of Idaho. | |||
Not supported with pagination yet | Compare the motion of three geese. Which goose was moving at the highest speed? | [
"a goose that moved 700kilometers south in 10hours",
"a goose that moved 695kilometers east in 10hours",
"a goose that moved 850kilometers 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 goose moved and the time it took to move that distance. The direction each goose moved does not affect its speed.
Notice that each goose moved for 10 hours. The goose that moved 850 kilometers moved the farthest distance in that time. So, that goose must have moved at the highest speed. | |
Not supported with pagination yet | Last year, there were seven men's clothing stores on Main Street in Winchester. This year, there are only three. What probably happened to the overall supply of men's shirts in Winchester? | [
"The supply probably went down.",
"The supply probably went up."
] | 0 | closed choice | grade6 | social science | economics | Supply and demand | Understand overall supply and demand | Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply.
| Resources | Number of producers or suppliers | Expected change in demand
Supply goe... | When four men's clothing stores closed on Main Street, the number of suppliers went down. There were fewer stores selling men's shirts. So, the supply of men's shirts probably went down. | |
Not supported with pagination yet | Select the plant. | [
"Loons walk, fly, and swim.",
"Walnut trees have many green leaves.",
"Yellow jackets drink nectar and fruit.",
"Lionfish swim underwater."
] | 1 | closed choice | grade3 | 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 yellow jacket is an animal. It drinks nectar and eats fruit.
A yellow jacket is an insect. Yellow jackets have two wings.
A walnut tree is a plant. It has many green leaves.
People pick and eat walnuts from walnut trees. Walnuts are the tree's seeds!
A loon is an animal. It walks, flies, and swims.
A loon is a bird. ... | |
Which property do these four objects have in common? | [
"rough",
"salty",
"transparent"
] | 1 | 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.
You can see clearly through a transparent object. The pretzel, the cracker, and the potato chips are not transparent.
Potato chips have a salty taste. All four objects are salty.
A rough object feels scratchy when you touch it. The cracker and the po... | |
Not supported with pagination yet | Which is softer? | [
"silk kimono",
"metal flute"
] | 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 silk kimono is softer. If you press on silk fabric, it will change shape. | |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"55°F",
"30°F",
"40°F"
] | 2 | closed choice | grade3 | natural science | units-and-measurement | Weather and climate | Read a thermometer | A thermometer is a tool that measures temperature. Temperature can be measured in degrees. The symbol for degrees is °.
Some thermometers measure temperature in degrees Fahrenheit (°F). Fahrenheit is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Fa... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid lines up with 40. So, the temperature is 40°F. | |
Not supported with pagination yet | Select the plant. | [
"Tigers eat animals.",
"Pine trees have green 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 tiger is an animal. It eats other animals.
An adult male tiger can be over 11 feet long.
A pine tree is a plant. It has green leaves.
Pine tree seeds grow in cones. Trees that grow cones are called conifers. | |
What is the name of the colony shown? | [
"Delaware",
"New York",
"New Jersey",
"Pennsylvania"
] | 0 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Delaware. | |||
Not supported with pagination yet | Select the elementary substance. | [
"graphite (C)",
"hydrazine (N2H4)",
"pyrite (FeS2)"
] | 0 | 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 graphite contains one symbol: C for carbon. So, graphite is made of one chemical element. Substances that are made of one chemical element a... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Best wishes,\nMaria",
"best wishes,\nMaria"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Select the reptile below. | [
"Chinese alligator",
"American bullfrog"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A coral snake is an example of a reptile. | 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. | An American bullfrog is an amphibian. It has moist skin and begins its life in water.
Frogs live near water or in damp places. Most frogs lay their eggs in water.
A Chinese alligator is a reptile. It has scaly, waterproof skin.
Alligators live in and around water. They can live near ponds, rivers, marshes, and lakes. | |
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 | 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 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 | What do these two changes have in common?
ice melting in a glass
getting a haircut | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are only physical changes.",
"Both are chemical changes."
] | 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.
Ice melting in a glass is a change of state. So, it is a physical change. The solid ice becomes liquid, but it is still made of water. A different type of matter is not made.
Getting a haircut is a physical change. Your hair is shorter after a haircut. But it is still made of the same t... | |
Which of these states is farthest west? | [
"South Carolina",
"Nebraska",
"Rhode Island",
"New Hampshire"
] | 1 | closed choice | grade4 | 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 west arrow is pointing. Nebraska is farthest west. | ||
What is the name of the colony shown? | [
"New York",
"South Carolina",
"Virginia",
"West Virginia"
] | 2 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Virginia.
The Virginia Colony included land that would later become part of the state of West Virginia. West Virginia was never its own colony. | |||
Not supported with pagination yet | Which closing is correct for a letter? | [
"yours truly,\nGabby",
"Yours truly,\nGabby"
] | 1 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | What is the volume of a large soup pot? | [
"3 cups",
"3 gallons",
"3 fluid ounces"
] | 1 | 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 soup pot is 3 gallons.
3 fluid ounces and 3 cups are both too little. |
Not supported with pagination yet | Which type of sentence is this?
Martina is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years. | [
"simple",
"complex",
"compound-complex",
"compound"
] | 2 | closed choice | grade7 | 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-complex. It is made up of two independent clauses and a dependent clause. The dependent clause begins with the relative pronoun which.
Martina is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years. | |
Select the true statement. | [
"Eye color is an example of a gene.",
"All organisms have genes."
] | 1 | Look at the image and read the text. Then, answer the question.
variation in the human eye color trait
All organisms inherit certain traits from their parents. Information about these inherited traits is found in genes. Genes are pieces of hereditary material that are passed from parents to offspring. An organism's gen... | closed choice | grade6 | natural science | biology | Genes to traits | Genes, proteins, and traits: understanding the genetic code | Genes are passed down from parents to offspring.
When an organism reproduces, it passes copies of its genes to its offspring. This is how information about inherited traits is passed down.
Eye color is an example of a gene.
An organism's eye color is affected by its genes. But eye color is not a gene. Eye color is a tr... | ||
During this time, thermal energy was transferred from () to (). | [
"each refrigerator . . . the surroundings",
"the surroundings . . . each refrigerator"
] | 1 | Two identical refrigerators in a restaurant kitchen lost power. The door of one fridge was slightly open, and the door of the other fridge was closed. This table shows how the temperature of each refrigerator changed over 10minutes. | 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 refrigerator increased, which means that the thermal energy of each refrigerator increased. So, thermal energy was transferred from the surroundings to each refrigerator. | |
Not supported with pagination yet | Using only these supplies, which question can Dustin investigate with an experiment? | [
"Do toy cars with plastic wheels go faster down the cardboard ramp than toy cars with metal wheels?",
"Does a big toy car go down the wooden ramp faster than a small toy car?",
"Do toy cars go faster down the ramp made of wood or the ramp made of cardboard?"
] | 2 | Dustin and his sister are building ramps to race their toy cars down. Dustin notices that the cars go down some of the ramps faster than others. He wonders what factors affect the cars' speed. So, he decides to design an experiment. He has the following supplies available:
two identical toy cars
a wooden ramp three fee... | 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... | |
Complete the statement.
Calcium is (). | [
"a compound",
"an elementary substance"
] | 1 | The model below represents calcium. lcium is a metal found in substances that make up your teeth and bones. | closed choice | grade8 | 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 calcium is an elementary substance or a compound.
Step 1: Interpret the model.
In the space-filling model shown above, all of the balls are the same color:
. The legend shows that green represents the chemical element with the atomic symbol Ca. So, the model shows you that calcium is ... | |
Which specific humidity level was measured within the outlined area shown? | [
"16 grams of water vapor per kilogram of air",
"23 grams of water vapor per kilogram of air",
"14 grams of water vapor per kilogram of air"
] | 1 | The map below shows humidity in the lower atmosphere on April 9, 2016. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in Africa on that day.
Look at the map. Then, answer the question below.
Data source: United States N... | closed choice | grade7 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show specific humidity, a measurement of the amount of water vapor in the air.
The map's legend tells you the specific humidity level that each color represents. Colors on the left in th... | Look at the colors shown within the outlined area. Then, use the legend to determine which specific humidity levels those colors represent.
The legend tells you that this air mass contained air with specific humidity levels between 20 and 24 grams of water vapor per kilogram of air.
23 grams of water vapor per kilogram... | |
Which month is the coolest on average in Detroit? | [
"November and December",
"January and February",
"March and April"
] | 1 | 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. Temperature is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average temperature for each month. The average temperature can be used to describe the climate of a location.
A line graph can be used t... | To describe the average temperature trends in Detroit, look at the graph.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "Apr" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
Choice "Jan" is incorrect.
The average temperatures in January and February are between 25°F and 30°F. These mo... | |
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."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. | |
Not supported with pagination yet | What information supports the conclusion that Kristen acquired this trait? | [
"Some scars fade more quickly than others.",
"Kristen's scar was caused by an accident. She cut her leg when she was climbing a tree."
] | 1 | Read the description of a trait.
Kristen has a scar on her left leg. | closed choice | grade3 | natural science | biology | 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... | |
What is the capital of Tennessee? | [
"Salt Lake City",
"Montgomery",
"Tallahassee",
"Nashville"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | |||
Not supported with pagination yet | Does this passage describe the weather or the climate?
Topeka, Kansas, is located in an open prairie. So, it is windy all year long. | [
"weather",
"climate"
] | 1 | 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.
Topeka, Kansas, is located in an open prairie. So, it is windy all year long.
This passage tells you about the usual wind pattern in Topeka. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | Is a desk a good or a service? | [
"a good",
"a service"
] | 0 | closed choice | grade2 | social science | economics | Economics | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether a desk is a good or a service, ask these questions:
Is a desk something you can touch? Yes.
Is a desk a job you might pay someone else to do? No.
So, a desk is a good. | |
Select the organism in the same species as the black-blotched porcupinefish. | [
"Amphiprion perideraion",
"Diodon liturosus",
"Chelmon rostratus"
] | 1 | This organism is a black-blotched porcupinefish. Its scientific name is Diodon liturosus. | closed choice | grade7 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A black-blotched porcupinefish's scientific name is Diodon liturosus.
Diodon liturosus has the same scientific name as a black-blotched porcupinefish. So, these organisms are in the same species.
Amphiprion perideraion does not have the same scientific name as a black-blotched porcupinefish. So, Diodon liturosus and Am... | |
Not supported with pagination yet | Which type of sentence is this?
Gavin always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | [
"complex",
"compound-complex",
"compound",
"simple"
] | 2 | closed choice | grade9 | 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.
Gavin always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | |
Which continent is highlighted? | [
"Australia",
"South America",
"Asia",
"Europe"
] | 3 | closed choice | grade4 | social science | geography | Oceans and continents | Identify 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 Europe. | ||
Not supported with pagination yet | The First Amendment says that the government cannot make laws that take away a person's freedom of speech. What does it say about laws about religion? | [
"The government can choose an official religion if enough people vote for it.",
"The government cannot make any laws that take away freedom of religion.",
"The government can make laws about some religions, but not all of them.",
"The government can make laws to support a religion but not to oppose a religion... | 1 | closed choice | grade4 | social science | civics | Government | The Bill of Rights | The First Amendment says that the government cannot make any laws that take away freedom of religion. Freedom of speech means that Americans can say and write what they want. But there are some limits on freedom of speech. For example, a person cannot write lies about someone in a newspaper. But the government cannot s... | ||
Not supported with pagination yet | What is the mass of an apple? | [
"105 kilograms",
"105 grams"
] | 1 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an apple is 105 grams.
105 kilograms is too heavy. |
What is the name of the colony shown? | [
"Massachusetts",
"Florida",
"New Jersey",
"Michigan"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Massachusetts.
The Massachusetts Colony included land that would later become the state of Maine. Maine was never its own colony. | |||
Which animal is also adapted to be camouflaged in the snow? | [
"camel",
"Arctic hare"
] | 1 | Short-tailed weasels live in cold, snowy areas in Europe. The short tailed weasel is adapted to be camouflaged in the snow.
Figure: short-tailed weasel. | 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 short-tailed weasel.
During the winter, the short-tailed weasel has white fur covering its body. It is adapted to be camouflaged in the snow. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
During the winter, the Arctic hare ha... | |
What is the capital of California? | [
"Knoxville",
"San Francisco",
"Columbus",
"Sacramento"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Sacramento is the capital of California. |
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.