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Not supported with pagination yet | Which tense does the sentence use?
Mr. Boyd signed his name on the letter. | [
"present tense",
"future tense",
"past tense"
] | 2 | closed choice | grade2 | 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 past tense. You can tell because it uses a past-tense verb, signed. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Select the one true statement. | [
"Chromosomes are inside the nucleus of an animal cell.",
"The cell membrane stores nutrients, water, and waste in a plant cell.",
"Plant cells can have mitochondria but do not have vacuoles."
] | 0 | closed choice | grade7 | natural science | biology | Cells | Compare cells and cell parts | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
leather - lower | [
"little",
"latitude"
] | 0 | 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 little is between the guide words leather - lower, it would be found on that page. | |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her organization?
For several reasons, plagiarism is a major issue in schools today. Part of the problem is that many students don't even know what plagiarism means exactly. For teachers, it can be a challenge to spot plagiarism. As... | [
"by making a general statement before giving examples",
"by removing text unrelated to the main idea",
"by discussing one topic before moving on to another"
] | 2 | closed choice | grade11 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | During peer review, you read and respond to a fellow student's writing. While there are many methods and strategies that you can use for reviewing a text, it is generally helpful to frame your suggestions in concrete and constructive ways and to consider the following areas for revision:
Ideas and development: Does the... | The writer could best improve his or her organization by discussing one topic before moving on to another.
For example, the writer could move the underlined text to follow the second sentence so that all the information about students comes before the part about teachers.
For several reasons, plagiarism is a major issu... | |
Select the organism in the same genus as the great egret. | [
"Tyto alba",
"Syngnathoides biaculeatus",
"Ardea purpurea"
] | 2 | This organism is a great egret. Its scientific name is Ardea alba. | closed choice | grade6 | 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 great egret's scientific name is Ardea alba. The first word of its scientific name is Ardea.
Ardea purpurea is in the genus Ardea. The first word of its scientific name is Ardea. So, Ardea purpurea and Ardea alba are in the same genus.
Tyto alba and Ardea alba are not in the same genus.
These organisms are not in the... | |
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 | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | 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 ... | |
Which of the following could Leroy's test show? | [
"if the weather station would work when the temperature was 50°C",
"how well the weather station would work when it was windy"
] | 0 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Which bird's beak is also adapted to catch insects? | [
"common nighthawk",
"hanging parrot"
] | 0 | Barn swallows eat insects and other small invertebrates. The shape of the 's beak is adapted to catch insects.
Figure: barn swallow. | closed choice | grade3 | 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 a bird's beak is one example of an adaptation. Birds' beaks can be adapted in different ways. For example, a sharp hooked beak might help a bird tear through meat easily. ... | Look at the picture of the barn swallow.
A short, thin beak is light and easy to move. The barn swallow uses its beak to grab fast-moving insects while flying.
Now look at each bird. Figure out which bird has a similar adaptation.
The common nighthawk has a short, thin beak. Its beak is adapted to catch insects.
The ha... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Finn dropped out of college to travel the world, but a year later, the prodigal son returned home and re-enrolled. | [
"Greek mythology",
"the Bible"
] | 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 prodigal son is the Bible.
In a Biblical parable, the prodigal son irresponsibly spends the inheritance given to him by his father. When he returns home, he expects to be shamed, but his father forgives him.
The allusion prodigal son means a person who behaves recklessly but later makes a rep... | |
Not supported with pagination yet | Which is a complex sentence? | [
"Mr. Long's afternoon lecture was about art and culture in Germany before World War II.",
"Bobby prepared a receipt for the customer while Eddie packaged her items for her."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the complex sentence. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction while.
Bobby prepared a receipt for the customer while Eddie packaged her items for her. | |
Not supported with pagination yet | Based on this information, what is Nessie's phenotype for the body color trait? | [
"bb",
"a golden body"
] | 1 | In a group of guppies, some individuals have a gray body and others have a golden body. In this group, the gene for the body color trait has two alleles. The allele B is for a gray body, and the allele b is for a golden body.
Nessie, a guppy from this group, has a golden body. Nessie has two alleles for a golden body. | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Nessie's observable version of the body color trait is a golden body. So, Nessie's phenotype for the body color trait is a golden body. |
In this food web, which organism contains matter that eventually moves to the earthworm? | [
"barren-ground caribou",
"Arctic fox"
] | 1 | Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade5 | natural science | biology | Ecosystems | Interpret food webs 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 to the earthworm.
Arrows point from the barren-ground caribou to the grizzly bear and the mushroom. The only arrow pointing from the grizzly bear leads to the mushroom. No arrows point from the mushroom... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Sue has a scar on her right hand. | [
"inherited",
"acquired"
] | 1 | Hint: Most scars are caused by accidents during a person's life. | closed choice | grade4 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | Children do not inherit their parent's scars. Instead, scars are caused by the environment. People can get scars after they get hurt. So, having a scar is an acquired trait. |
What can Clara and Gabriel trade to each get what they want? | [
"Gabriel can trade his broccoli for Clara's oranges.",
"Clara can trade her tomatoes for Gabriel's carrots.",
"Clara can trade her tomatoes for Gabriel's broccoli.",
"Gabriel can trade his almonds for Clara's tomatoes."
] | 2 | 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.
Clara and Gabriel open their lunch boxes in the school cafeteria. Neither Clara nor Gabriel got everything that they wanted. The ... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Clara wants broccoli. Gabriel wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
What is the capital of Mississippi? | [
"Jackson",
"Harrisburg",
"Biloxi",
"Nashville"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Jackson is the capital of Mississippi. | |||
Not supported with pagination yet | Which text uses the word disinterested in its traditional sense? | [
"Akira is happy with her position as class treasurer. Though she would have the support of the student council, she is disinterested in running for student body president.",
"Akira is excellent in her position as class treasurer. She always manages to be disinterested in student council debates about the allocati... | 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 second text uses disinterested in its traditional sense: unbiased or impartial.
Akira is excellent in her position as class treasurer. She always manages to be disinterested in student council debates about the allocation of extracurricular funds.
The first text uses disinterested in its nontraditional sense: unint... | |
Is a stuffed tiger a solid, a liquid, or a gas? | [
"a gas",
"a solid",
"a liquid"
] | 1 | closed choice | grade2 | 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 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 i... | 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 capital of Colorado? | [
"Montpelier",
"Denver",
"Colorado Springs",
"Boulder"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
What is the capital of Wyoming? | [
"Provo",
"Cheyenne",
"Concord",
"Phoenix"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Cheyenne is the capital of Wyoming. | |||
Not supported with pagination yet | What kind of sentence is this?
Will you be here again next Wednesday? | [
"interrogative",
"declarative"
] | 0 | closed choice | grade4 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence asks something, and it ends with a question mark. It is an interrogative sentence. | |
Not supported with pagination yet | Based on this information, what is Holly's phenotype for the body hair trait? | [
"a hairless body",
"a hairy body"
] | 1 | In a group of deer mice, some individuals have a hairy body and others have a hairless body. In this group, the gene for the body hair trait has two alleles. The allele for a hairy body (B) is dominant over the allele for a hairless body (b).
Holly is a deer mouse from this group. Holly has the heterozygous genotype Bb... | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine Holly's phenotype for the body hair trait. First, consider the alleles in Holly's genotype for the body hair gene. Then, decide whether these alleles are dominant or recessive.
The allele for a hairy body (B) is dominant over the allele for a hairless body (b). This means B is a dominant allele, a... |
What is the name of the colony shown? | [
"Michigan",
"New Hampshire",
"Massachusetts",
"North Carolina"
] | 2 | closed choice | grade8 | social science | us-history | Colonial 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. | |||
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | 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 | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample 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... | |
Which country is highlighted? | [
"Grenada",
"Saint Kitts and Nevis",
"Cuba",
"Haiti"
] | 3 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Haiti.
Does Haiti have any territorial disputes?
Haiti claims to own Navassa Island, which is a disputed territory. In other words, multiple countries or groups claim that the area rightfully belongs to them.
Navassa Island is also claimed by the United States. The United States claimed the island in 18... | |||
Which property matches this object? | [
"sweet",
"yellow"
] | 0 | Select the better answer. | closed choice | grade2 | 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. | Look at the object.
Think about each property.
Yellow is a color.
This color is yellow. The jam is not yellow.
Sugar has a sweet taste. The jam is sweet. | |
Is Megaptera novaeangliae made up of many cells? | [
"yes",
"no"
] | 0 | This organism is Megaptera novaeangliae. It is a member of the animal kingdom.
Megaptera novaeangliae is commonly called a humpback whale. Humpback whales are famous for their underwater singing. They sing to communicate with one another over long distances. Male humpback whales can sing for up to 24 hours straight! | 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... | Megaptera novaeangliae is an animal. Animals are made up of many cells. | |
Not supported with pagination yet | Select the one animal that has all of the reptile traits listed above. | [
"Smooth newts have moist, smooth skin with black spots. Young smooth newts hatch from eggs without shells. They live in streams or ponds until they are about ten weeks old. Then, they crawl onto land.",
"Box turtles can live to be over 100 years old! They have scaly, waterproof skin and a thick shell that helps p... | 1 | Reptiles are a group of animals with similar traits. The following traits can be used to identify reptiles:
They have scaly, waterproof skin.
They make eggs with shells. Observe the animals and read the descriptions. | closed choice | grade4 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Reptiles have the following traits:
They have scaly, waterproof skin.
They make eggs with shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A smooth newt has the following t... |
Which rhetorical appeal is primarily used in this ad? | [
"ethos (character)",
"pathos (emotion)",
"logos (reason)"
] | 1 | closed choice | grade12 | language science | writing-strategies | Persuasive strategies | Identify appeals to ethos, pathos, and logos in advertisements | The purpose of an advertisement is to persuade people to do something. To accomplish this purpose, advertisements use three types of persuasive strategies, or appeals.
Appeals to ethos, or character, show the writer or speaker as trustworthy, authoritative, or sharing important values with the audience. An ad that appe... | The ad appeals to pathos, or emotion, by associating the car with feelings of adventure and independence. | ||
Not supported with pagination yet | What does the idiom in this text suggest?
Cell phones once cost an arm and a leg, but today the majority of people can afford them. | [
"Cell phones were once very expensive.",
"Cell phones once varied greatly in price."
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An idiom is an expression that cannot be understood literally. Its meaning must be learned.
The assignment was a piece of cake. | The text uses an idiom, an expression that cannot be understood literally.
The idiom an arm and a leg suggests that cell phones were once very expensive. A part of your body would be a high price to pay, so the idiom means that something is very expensive. | |
What is the capital of Oklahoma? | [
"Tulsa",
"Des Moines",
"Oklahoma City",
"Montgomery"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Oklahoma City is the capital of Oklahoma. | |||
What is the capital of North Carolina? | [
"Cheyenne",
"Raleigh",
"Fargo",
"Bismarck"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Complete the statement.
Benzene is (). | [
"a compound",
"an elementary substance"
] | 0 | The model below represents a molecule of benzene. Benzene is a chemical used to make plastic and styrofoam. | 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 benzene 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 el... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller 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 | grade6 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"With Love,\nKristen",
"With love,\nKristen"
] | 1 | closed choice | grade3 | 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 closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Suppose Haley decides to see the leopards. Which result would be a cost? | [
"Haley will spend more time walking to the leopards. They are on the other side of the zoo, but the elephants are close by.",
"Haley will enjoy seeing the leopards more than she would have enjoyed seeing the elephants."
] | 0 | Haley is deciding whether to see the leopards or the elephants at the zoo. She wants to see lots of animals, but the zoo is closing soon. | closed choice | grade4 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Haley wants or needs:
Haley will spend more time walking to the leopards. They are on the other side of the zoo, but the elephants are close by. |
Not supported with pagination yet | Which sentence is more formal? | [
"Many languages around the world are endangered because young people aren't learning them.",
"Many languages around the world are endangered because young people are not learning them."
] | 1 | closed choice | grade7 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses a contraction (aren't).
The first sentence does not use a contraction, so it is more formal. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"sample B",
"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 | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | 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 ... | ||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
The national park is truly a Garden of Eden. | [
"the Bible",
"a song"
] | 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 Garden of Eden is the Bible.
In the Bible, the Garden of Eden is a paradise where the first man and woman lived.
The allusion Garden of Eden means a place of great beauty and peace. | |
Not supported with pagination yet | Which type of sentence is this?
Anna is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years. | [
"compound-complex",
"simple",
"complex",
"compound"
] | 0 | 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.
Anna is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years. | |
Which of these states is farthest west? | [
"Idaho",
"New Hampshire",
"North Dakota",
"Florida"
] | 0 | 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 west arrow is pointing. Idaho is farthest west. | ||
Not supported with pagination yet | What do these two changes have in common?
water freezing into ice
peeling a banana | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by heating."
] | 2 | closed choice | grade3 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Water freezing into ice is a change of state. So, it is a physical change. The water changes from solid to liquid. But the ice is still made of the same type of matter as the liquid water.
Peeling a banana is a physical change. The peel is not covering the rest of the fruit anymore. But... | |
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 | Compare the motion of two trains. Which train was moving at a higher speed? | [
"a train that moved 405kilometers in 5hours",
"a train that moved 540kilometers in 5hours"
] | 1 | 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 train moved and the time it took to move that distance.
One train moved 540 kilometers in 5 hours.
The other train moved 405 kilometers in 5 hours.
Notice that each train spent the same amount of time moving. The train that moved 540 kilometers moved a farther distance in that time. So, that t... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
hair - holly | [
"humble",
"history"
] | 1 | closed choice | grade3 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since history is between the guide words hair - holly, it would be found on that page. | |
Not supported with pagination yet | Using only these supplies, which question can Gary investigate with an experiment? | [
"Do rubber balloons or foil balloons stick to the wooden door longer after being rubbed on his hair?",
"Do rubber balloons stick to a cotton blanket or a wooden door longer after being rubbed on his hair?",
"Do rubber balloons stick to a wooden door or a metal door longer after being rubbed on his hair?"
] | 1 | Gary went to a magic show. The magician rubbed a balloon on her hair and then held the balloon against a wall. When the magician released the balloon, Gary was amazed to see that it stuck to the wall! He wonders what factors affect how well balloons stick to different surfaces. So, he decides to design an experiment. H... | 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... | |
Not supported with pagination yet | Using only these supplies, which question can Lacey investigate with an experiment? | [
"Do larger basketballs bounce higher than smaller basketballs on a brick patio?",
"Does the basketball bounce higher on a lawn or on a dirt path?",
"Does the basketball bounce higher on gravel or on grass?"
] | 2 | Lacey 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... | |
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"boast about something",
"talk about something"
] | 0 | closed choice | grade4 | language science | vocabulary | Shades of meaning | Positive and negative connotation | Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations.
For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations.
Eager has a positive connotation. It is a n... | Boast about something has a more negative connotation. If you boast about something, you talk about it with too much pride. | |
Not supported with pagination yet | Which is a run-on sentence? | [
"The cardboard box gets wet, it falls apart.",
"Ms. Stevenson's many books about history and law."
] | 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... | The cardboard box gets wet, it falls apart is a run-on sentence. It has two sentences that are joined by just a comma: The cardboard box gets wet and It falls apart. | |
What is the capital of Hawaii? | [
"Carson City",
"Honolulu",
"Salem",
"Hilo"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Honolulu is the capital of Hawaii. | |||
What is this nightshade's scientific name? | [
"Solanum dulcamara",
"Solanum baretiae"
] | 1 | In the 1770s, Jeanne Baret sailed around the world to study plants. At the time, women were not allowed on long sailing expeditions. She had to pretend to be a man during the trip!
Jeanne Baret's work was not recognized for many years. In 2012, the scientific name of this plant, a type of nightshade, was chosen in hono... | closed choice | grade4 | natural science | biology | Scientific names | Origins of scientific names | When a scientist identifies a new organism, he or she chooses its scientific name.
Sometimes, an organism is named after the place where it was first found. Other times, an organism is named after the scientist who first identified it. Or, the scientific name might describe the organism's physical traits.
Many of the w... | This organism's scientific name refers to Jeanne Baret.
The word baretiae refers to Jeanne Baret. So, this nightshade's scientific name is Solanum baretiae. | |
Not supported with pagination yet | Which marble has a higher temperature? | [
"the marble with more thermal energy",
"the marble with less thermal energy"
] | 0 | Two marbles are identical except for their thermal energies. | closed choice | grade6 | natural science | physics | 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 marbles are made of the same material and have the same mass. So, the marble with more thermal energy has a higher temperature. |
What is the capital of Illinois? | [
"Indianapolis",
"Jackson",
"Chicago",
"Springfield"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Springfield is the capital of Illinois. | |||
Not supported with pagination yet | Select the one animal that has all of the insect traits listed above. | [
"Birdwing butterflies have an exoskeleton and six legs. Males are bright green and black, and females are brown or yellow. Both males and females have one pair of antennae.",
"Trichina worms have soft, thin bodies. They have a cylindrical shape and do not have limbs. Trichina worms are not made up of segments. Th... | 0 | Insects are a group of animals with similar traits. The following traits can be used to identify insects:
They have six legs.
They have an exoskeleton.
They have one pair of antennae. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify animals | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Insects have the following traits:
They have six legs.
They have an exoskeleton.
They have one pair of antennae.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A birdwing butterf... |
Which statement describes the Bering Land Bridge National Preserve ecosystem? | [
"It has soil that is frozen year-round.",
"It has dry, thin soil that is rich in nutrients.",
"It has many evergreen trees."
] | 0 | Figure: Bering Land Bridge National Preserve.
Bering Land Bridge National Preserve is a tundra ecosystem in western Alaska. The preserve is home to herds of caribou, muskoxen, and reindeer. | closed choice | grade8 | 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 tundra is a type of ecosystem. Tundras have the following features: long, cold winters and short, cold summers, soil that is frozen year-round, and mostly small plants. So, the following statement describes the Bering Land Bridge National Preserve ecosystem: long, cold winters and short, cold summers, soil that is fr... | |
Not supported with pagination yet | What do these two changes have in common?
sauce burning on a stove
a crayon melting in the sun | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes."
] | 2 | closed choice | grade4 | 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.
Sauce burning on a stove is a chemical change. High temperatures case the sauce to react with oxygen in the air. The sauce turns black and no longer tastes good.
A crayon melting in the sun is a change of state. So, it is a physical change. The crayon changes state from solid to liquid.... | |
What is the capital of Nevada? | [
"Olympia",
"Honolulu",
"Reno",
"Carson City"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | |||
What is the capital of Oklahoma? | [
"Oklahoma City",
"Cedar Rapids",
"Austin",
"Tulsa"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Oklahoma City is the capital of Oklahoma. | |||
Not supported with pagination yet | How long is a basketball court? | [
"28 feet",
"28 inches",
"28 miles",
"28 yards"
] | 3 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a basketball court is 28 yards.
28 inches and 28 feet are too short. 28 miles is too long. |
Not supported with pagination yet | Which word does not rhyme? | [
"rut",
"shut",
"rob"
] | 2 | closed choice | grade1 | 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 ip sound.
The words lake and make rhyme. They both end with the ake sound.
The words tip and lake don't rhyme. They end with different sounds. | The words rut and shut rhyme. They both end with the ut sound.
The word rob does not rhyme. It ends with a different sound. | |
Identify the question that Rebecca's experiment can best answer. | [
"Do radishes grown under bright light get bigger than radishes grown under dim light?",
"Do radish plants grown under bright light have more leaves than radish plants grown under dim light?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Rebecca planted 20 radish plants in a greenhouse, putting each plant in its own pot. She placed ten of the pots under bright light and the other ten pots under dim light. Rebecca watered all the plants twice a day. Afte... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | Which organ reabsorbs water from undigested food? | [
"trachea",
"skin",
"lungs",
"large intestine"
] | 3 | closed choice | grade4 | natural science | biology | Animals | Human organs and their functions | |||
Not supported with pagination yet | What do these two changes have in common?
cutting an apple
breaking a stick in half | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating.",
"Both are only physical changes."
] | 3 | 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.
Cutting an apple is a physical change. The apple gets a different shape. But it is still made of the same type of matter as the uncut apple.
Breaking a stick in half is a physical change. The stick gets broken into two pieces. But the pieces are still made of the same type of matter as ... | |
Not supported with pagination yet | What do these two changes have in common?
plants making food from sunlight, air, and water
a piece of avocado turning brown | [
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are only physical changes.",
"Both are chemical changes."
] | 3 | closed choice | grade4 | 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.
Plants making food is a chemical change. Plants use energy from sunlight to change air and water into food. The food is sugar. Sugar is a different type of matter than air or water.
A piece of avocado turning brown is a chemical change. The avocado reacts with oxygen in the air to form ... | |
What is the capital of Louisiana? | [
"New Orleans",
"Raleigh",
"Baton Rouge",
"Frankfort"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Baton Rouge is the capital of Louisiana. | |||
What is the name of the colony shown? | [
"New Hampshire",
"North Carolina",
"Vermont",
"Connecticut"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
Identify the question that Mary and Harry's experiment can best answer. | [
"Does Mary's snowboard slide down a hill in less time when it has a thin layer of wax or a thick layer of wax?",
"Does Mary'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?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Mary 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 more... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Which material is this fire hydrant made of? | [
"metal",
"porcelain"
] | 0 | closed choice | grade3 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the fire hydrant.
The fire hydrant is made of metal.
Fire hydrants are made of strong metal to keep the water from leaking out. | ||
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."
] | 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. | |
What can Ethan and Grace trade to each get what they want? | [
"Grace can trade her broccoli for Ethan's oranges.",
"Ethan can trade his tomatoes for Grace's carrots.",
"Ethan can trade his tomatoes for Grace's broccoli.",
"Grace can trade her almonds for Ethan's tomatoes."
] | 2 | 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.
Ethan and Grace open their lunch boxes in the school cafeteria. Neither Ethan nor Grace got everything that they wanted. The tabl... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Ethan wants broccoli. Grace wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
What is the capital of Tennessee? | [
"Nashville",
"Knoxville",
"Boulder",
"Memphis"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | |||
What do hedgehogs do when they are scared? | [
"They shoot their spines like arrows.",
"They curl up into a ball."
] | 1 | Read the passage about hedgehogs.
Hedgehogs have sharp spines that cover their backs. Some people think they look like little spiky balls! When they are scared, hedgehogs roll up into a ball. This keeps them safe from foxes and other animals.
Hedgehogs eat things like insects, worms, and snails. They hunt for food in h... | closed choice | grade2 | language science | reading-comprehension | Independent reading comprehension | Read and understand informational passages | Look at the passage. It tells you what hedgehogs do when they are scared.
Hedgehogs have sharp spines that cover their backs. Some people think they look like little spiky balls! When they are scared, hedgehogs roll up into a ball. This keeps them safe from foxes and other animals. | ||
Which country is highlighted? | [
"Cuba",
"Grenada",
"Saint Vincent and the Grenadines",
"Barbados"
] | 2 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Vincent and the Grenadines. | |||
Which of the following fossils is older? Select the more likely answer. | [
"mammal tooth",
"dinosaur footprint"
] | 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 older:
The dinosaur footprint fossil is in a deeper layer in the rock sequence than the mammal tooth fossil. So, the dinosaur footprint fossil is most likely older than the mammal tooth fossil. | |
Is a skull a mineral? | [
"no",
"yes"
] | 0 | A skull has the following properties:
animal body part
naturally occurring
no fixed crystal structure
not a pure substance
solid | yes or no | grade6 | 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... | A skull does not have all the properties of a mineral. So, a skull is not a mineral. | |
Not supported with pagination yet | Which press release is more formal? | [
"On November 19, the Newton Amphitheater will host area musicians vying for top honors in the fourth annual Jam-a-thon.",
"On Nov. 19, musicians from all over town will battle it out in the fourth annual Jam-a-thon, happening at the amphitheater."
] | 0 | closed choice | grade9 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The first press release is more formal. It uses more elevated language (area musicians, top honors). The other press release uses idioms (battle it out) and abbreviations (Nov.). | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
mellow - murmur | [
"mound",
"mascot"
] | 0 | 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 mound is between the guide words mellow - murmur, it would be found on that page. | |
Not supported with pagination yet | What kind of sentence is this?
Do you know Jonah from soccer camp, or do you have another connection with him? | [
"declarative",
"imperative",
"interrogative"
] | 2 | 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 asks something, and it ends with a question mark. It is an interrogative sentence. | |
Which better describes the Bering Land Bridge National Preserve ecosystem? | [
"It has warm summers. It also has cool winters.",
"It has short, cold summers. It also has soil that is frozen year-round."
] | 1 | Figure: Bering Land Bridge National Preserve.
Bering Land Bridge National Preserve is a tundra ecosystem in western Alaska. | 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 tundra is a type of ecosystem. Tundras have the following features: long, cold winters and short, cold summers, soil that is frozen year-round, and mostly small plants. So, Bering Land Bridge National Preserve has short, cold summers. It also has soil that is frozen year-round.. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Henry has a scar on his left hand. | [
"acquired",
"inherited"
] | 0 | Hint: Most scars are caused by accidents during a person's life. | 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... | Children do not inherit their parent's scars. Instead, scars are caused by the environment. People can get scars after they get hurt. So, having a scar is an acquired trait. |
Not supported with pagination yet | Which change best matches the sentence?
A piece of rock from outer space hits Earth. | [
"deposition",
"meteorite crash",
"erosion"
] | 1 | closed choice | grade3 | natural science | earth-science | Earth events | Classify changes to Earth's surface II | |||
What is the capital of Massachusetts? | [
"Providence",
"Oklahoma City",
"Boston",
"Plymouth"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Boston is the capital of Massachusetts. | |||
Not supported with pagination yet | Using only these supplies, which question can Porter investigate with an experiment? | [
"Does a pie crust made with white flour burn more quickly when the pie is cooked in a glass pan or in an aluminum pan?",
"Do pie crusts made with white flour burn less quickly when covered with aluminum foil or when left uncovered?",
"Does a pie crust made with white flour burn more quickly than a pie crust mad... | 0 | Porter is baking a pie. He notices that the crust burns before the pie is fully cooked. He wonders what factors affect whether a pie crust will burn in the oven. So, he decides to design an experiment. He has the following supplies available:
ingredients for pumpkin pie filling
ingredients for apple pie filling
two pie... | 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... | |
Select the reptile below. | [
"Mojave rattlesnake",
"gray wolf"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A tortoise is an example of a reptile. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A gray wolf is a mammal. It has fur and feeds its young milk.
A Mojave rattlesnake is a reptile. It has scaly, waterproof skin. | |
Not supported with pagination yet | Complete the statement. Assume that Anthony's mass did not change.
The gravitational potential energy stored between Anthony and Earth () as he hiked toward the summit. | [
"increased",
"decreased",
"stayed the same"
] | 0 | Read the text about a person in motion.
Anthony hiked up a tall mountain. He followed a trail all the way to the summit. | closed choice | grade6 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between Anthony and the center of Earth changed.
The summit of the mountain was higher than the point where Anthony started hiking. As he hiked toward the summit, the distance between Anthony and the center of Earth increased. So, the gravitational potential energy stored between Anthony an... |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes. | 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.
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 | Which sentence states a fact? | [
"Evergreen trees keep their needles in winter.",
"Trees that have needles are ugly."
] | 0 | 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.
Evergreen trees keep their needles in winter.
It can be proved by observing evergreen trees in winter.
The second sentence states an opinion.
Trees that have needles are ugly.
Ugly shows what a person believes, thinks, or feels. Another person might have a different opinion about which... | |
Which part of a flower can make eggs? | [
"the male part",
"the female part"
] | 1 | This diagram shows the life cycle of an apple tree. | closed choice | grade8 | natural science | biology | Plant reproduction | Angiosperm and conifer life cycles | Flowering plants, called angiosperms, use their flowers for sexual reproduction.
Flowers can have male parts, female parts, or both! The male part is called the stamen, and the female part is called the pistil.
Both the male and female parts are needed for sexual reproduction. The female part produces eggs, and the mal... | The female part of the flower makes eggs. The ovary, which is part of the pistil, makes eggs.
The male part of the flower makes pollen, not eggs. | |
Not supported with pagination yet | Choose the poem that uses onomatopoeia. | [
"Every man has got a hobby,\nEvery poet has some fault,\nEvery sweet contains its bitter,\nEvery fresh thing has its salt.\nEvery mountain has a valley.",
"Up from the river came\nThe low and sullen roar\nOf lions, with eyes of flame,\nThat haunted its reedy shore,\nAnd the neigh of the hippopotamus."
] | 1 | From George Reginald Margetson, "Stanzas from the Fledgling Bard and the Poetry Society" and From Maria Lowell, "Africa" | closed choice | grade9 | language science | reading-comprehension | Analyzing literature | Identify elements of poetry | Poets often use the sounds of words to create interesting effects and to express moods and emotions. Understanding these elements of poetry can help you better interpret and appreciate poetic forms.
Anaphora is the repetition of words or sequences of words at the beginning of multiple phrases, sentences, or lines.
Out ... | This poem uses onomatopoeia. It uses language that sounds like what it talks about.
And the neigh of the hippopotamus. |
Which of these states is farthest east? | [
"Michigan",
"Iowa",
"Colorado",
"Texas"
] | 0 | 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 east arrow is pointing. Michigan is farthest east. | ||
Not supported with pagination yet | Which type of sentence is this?
Colin always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | [
"compound",
"simple",
"complex",
"compound-complex"
] | 0 | closed choice | grade12 | 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.
Colin always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | |
What is the name of the colony shown? | [
"Illinois",
"Connecticut",
"New Hampshire",
"Massachusetts"
] | 3 | closed choice | grade7 | social science | us-history | Colonial 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. | |||
Not supported with pagination yet | What do these two changes have in common?
getting a haircut
cracking open a peanut | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating."
] | 0 | 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.
Getting a haircut is a physical change. Your hair is shorter after a haircut. But it is still made of the same type of matter.
Cracking open a peanut is a physical change. The peanut shell breaks and the peanut falls out. Both are still made of the same type of matter.
Step 2: Look at e... | |
What is the capital of Delaware? | [
"Wilmington",
"Annapolis",
"Huntington",
"Dover"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Dover is the capital of Delaware. | |||
Not supported with pagination yet | Suppose Vincent decides to take a trip to Tennessee. Which result would be a cost? | [
"Vincent will give up the chance to go to New York. He would have enjoyed a trip to New York more than Tennessee.",
"Vincent will save some money. Plane tickets for Vincent to get to Tennessee are less expensive than tickets to New York."
] | 0 | Vincent is deciding whether to take a trip to New York or Tennessee. He wants to enjoy his trip. But he is also trying to save money. | closed choice | grade4 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Vincent wants or needs:
Vincent will give up the chance to go to New York. He would have enjoyed a trip to New York more than Tennessee. |
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each aquarium",
"each aquarium . . . the surroundings"
] | 1 | Two identical aquariums were next to an open window. One aquarium had a plastic cover on it, and the other was uncovered. This table shows how the temperature of each aquarium changed over 1.5hours. | 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 aquarium decreased, which means that the thermal energy of each aquarium decreased. So, thermal energy was transferred from each aquarium to the surroundings. | |
Complete the statement.
Hydrogen chloride is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents a molecule of hydrogen chloride. Hydrogen chloride is part of the liquid in your stomach that helps digest food. | 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 hydrogen chloride 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 c... | |
Which of the following organisms is the secondary consumer in this food web? | [
"swallowtail caterpillar",
"gray fox",
"silver maple",
"persimmon tree"
] | 1 | 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 | grade7 | natural science | biology | Ecological interactions | Interpret food webs I | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Secondary consumers eat primary consumers, and primary consumers eat producers. So, in a food web, secondary consumers have arrows pointing to them from primary consumers. Primary consumers have arrows pointing to them from producers.
The silver maple does not have any arrows pointing to it. So, the silver maple is not... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your Student,\nLuke",
"Your student,\nLuke"
] | 1 | closed choice | grade3 | 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 first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Which fish's mouth is also adapted for tearing through meat? | [
"tiger moray",
"bluespine unicornfish"
] | 0 | Piranhas eat mostly fish. The 's mouth is adapted to tear through meat.
Figure: piranha. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's mouth is one example of an adaptation. Animals' mouths can be adapted in different ways. For example, a large mouth with sharp teeth might help an animal tear ... | Look at the picture of the piranha.
The piranha has large, sharp teeth. Its mouth is adapted for tearing through meat. The piranha uses its teeth to cut up meat into pieces it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The tiger moray has a large mouth and sharp teeth. Its m... | |
Not supported with pagination yet | Which figure of speech is used in this text?
After spending weeks in New York City, Camille was a bit unnerved by the deafening silence of her small hometown. | [
"oxymoron",
"euphemism"
] | 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 an oxymoron, a joining of two seemingly contradictory terms.
Deafening silence is a contradiction, because deafening describes something extremely loud, and silence is the absence of sound. |
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.