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Identify the question that Danielle's experiment can best answer. | [
"Does fabric turn darker when soaked in a mixture of black dye and water for 15 minutes compared to 30 minutes?",
"Does linen fabric turn darker than cotton fabric when soaked in a mixture of black dye and water?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Danielle prepared ten buckets, each with one gallon of boiling water and three tablespoons of black fabric dye. Danielle soaked white linen fabric squares in five of the buckets, and white cotton fabric squares in the o... | 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... | ||
Not supported with pagination yet | Complete the sentence.
In this chemical reaction, fructose is a (). | [
"reactant",
"product"
] | 1 | This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Honeybees make honey from nectar that they collect from flowers. Nectar is a clear liquid that contains a sugar called sucrose. After a bee collects nectar from a flower, chemicals in the bee's body break down the sucrose... | closed choice | grade7 | natural science | chemistry | Chemical reactions | Identify reactants and products | A chemical change occurs when new substances are formed from existing substances. This process is called a chemical reaction.
In a chemical reaction, one or more substances change into one or more different substances. During the reaction, the atoms of the original substances are rearranged to form other substances.
Th... | Read the underlined text carefully. Look for information about what happens to fructose in this chemical reaction.
Honeybees make honey from nectar that they collect from flowers. Nectar is a clear liquid that contains a sugar called sucrose. After a bee collects nectar from a flower, chemicals in the bee's body break ... |
Which of these cities is marked on the map? | [
"New York City",
"Philadelphia",
"Pittsburgh",
"Washington, D.C."
] | 3 | closed choice | grade4 | social science | geography | Cities | Cities of the Northeast | The city is Washington, D.C. Philadelphia, Pittsburgh, and New York City are marked with gray circles on the map below. | |||
What is the capital of Minnesota? | [
"Harrisburg",
"Anchorage",
"Lincoln",
"Saint Paul"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Saint Paul is the capital of Minnesota. | |||
What is the name of the colony shown? | [
"Tennessee",
"New Jersey",
"Rhode Island",
"Virginia"
] | 2 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Rhode Island. | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
refuse - rub | [
"rig",
"rascal"
] | 0 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since rig is between the guide words refuse - rub, it would be found on that page. | |
Not supported with pagination yet | Which is a compound sentence? | [
"The subway runs beneath the streets of the city.",
"A chimpanzee escaped from the zoo, so the police are searching for it."
] | 1 | 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 so.
A chimpanzee escaped from the zoo, so the police are searching for it. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Troy can drive a car. | [
"acquired",
"inherited"
] | 0 | Hint: Driving well takes practice. | closed choice | grade4 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | Humans are not born knowing how to drive a car. Instead, many people learn how to drive when they are older. So, driving is an acquired trait. |
Not supported with pagination yet | Which figure of speech is used in this text?
The hum of the computer concerned Jamal. Was the problem with the power supply or the hard drive? | [
"onomatopoeia",
"metaphor"
] | 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 onomatopoeia, a word that expresses a sound.
Hum represents the sound the computer was making. | |
Which of these states is farthest north? | [
"Missouri",
"California",
"Pennsylvania",
"North Carolina"
] | 2 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the north arrow is pointing. Pennsylvania is farthest north. | ||
Not supported with pagination yet | Compare the motion of three sailboats. Which sailboat was moving at the lowest speed? | [
"a sailboat that moved 120kilometers east in 10hours",
"a sailboat that moved 170kilometers south in 10hours",
"a sailboat that moved 45kilometers 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 sailboat moved and the time it took to move that distance. The direction each sailboat moved does not affect its speed.
Notice that each sailboat moved for 10 hours. The sailboat that moved 45 kilometers moved the shortest distance in that time. So, that sailboat must have moved at the lowest ... | |
Not supported with pagination yet | Complete the sentence.
Carving a piece of wood is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade3 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Burning a piece of paper is a chemical change. When paper gets hot enough, it reacts with oxygen in the air and burn... | Carving a piece of wood is a physical change. The wood changes shape, but it is still made of the same type of matter. | |
Not supported with pagination yet | Which text uses the word nauseous in its traditional sense? | [
"The odor emanating from the landfill made Dana so nauseous that she had to roll up the car windows as she drove past.",
"Dana couldn't tolerate the nauseous odor emanating from the landfill, so she rolled up her car windows as she drove past."
] | 1 | closed choice | grade11 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses nauseous in its traditional sense: causing disgust or nausea.
Dana couldn't tolerate the nauseous odor emanating from the landfill, so she rolled up her car windows as she drove past.
The first text uses nauseous in its nontraditional sense: feeling disgusted or nauseated.
The odor emanating from t... | |
Which of the following could Brenna and Sophia's test show? | [
"if the concrete from each batch took the same amount of time to dry",
"if a new batch of concrete was firm enough to use"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Which of these states is farthest east? | [
"Wisconsin",
"Tennessee",
"South Carolina",
"Delaware"
] | 3 | 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. Delaware is farthest east. | ||
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"Winnie the Pooh and a Day for Eeyore",
"winnie the Pooh and a Day for Eeyore"
] | 0 | closed choice | grade3 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The words the, and, a, and for are not important, so they should not be capitalized.
The correct title is Winnie the Pooh and a Day for Eeyore. | |
Not supported with pagination yet | How long does it take to go for a walk with a dog? | [
"15 minutes",
"15 seconds"
] | 0 | Select the better estimate. | closed choice | grade2 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes to go for a walk with a dog is 15 minutes.
15 seconds is too fast. |
Not supported with pagination yet | Which type of sentence is this?
Trevor always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | [
"compound",
"complex",
"simple",
"compound-complex"
] | 0 | closed choice | grade10 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is compound. It is made up of two independent clauses joined by the coordinating conjunction and.
Trevor always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | |
Not supported with pagination yet | Which correctly shows the title of a book? | [
"Penny and Her Doll",
"penny and Her doll"
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word and is not important, so it should not be capitalized.
The correct title is Penny and Her Doll. | |
What is the capital of Iowa? | [
"Des Moines",
"Tallahassee",
"Hilo",
"Pierre"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Des Moines is the capital of Iowa. | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
ravenous - rib | [
"ruffle",
"restart"
] | 1 | closed choice | grade5 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since restart is between the guide words ravenous - rib, it would be found on that page. | |
Which country is highlighted? | [
"The Bahamas",
"Cuba",
"Trinidad and Tobago",
"Jamaica"
] | 1 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Cuba.
Does Cuba have any territorial disputes?
Cuba claims to own Guantanamo Bay Naval Base, which is a disputed territory. In other words, multiple countries or groups claim that the area rightfully belongs to them.
The United States controls the area and uses it as a military base and prison. A treaty... | |||
Select the mammal below. | [
"toco toucan",
"green iguana",
"thresher shark",
"sea otter"
] | 3 | Mammals have hair or fur and feed their young milk.
Mammals are warm-blooded. Warm-blooded animals can control their body temperature.
A black howler is an example of a mammal. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A green iguana is a reptile. It has scaly, waterproof skin.
Iguanas are a type of lizard. Iguanas eat plants and fruit.
A sea otter is a mammal. It has fur and feeds its young milk.
Sea otters have very thick fur. Their fur keeps them warm in cold water.
A toco toucan is a bird. It has feathers, two wings, and a beak.
... | |
Is muscovite a mineral? | [
"no",
"yes"
] | 1 | Muscovite has the following properties:
pure substance
not made by organisms
fixed crystal structure
solid
naturally occurring | 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... | Muscovite has all the properties of a mineral. So, muscovite is a mineral. | |
Not supported with pagination yet | Complete the statement.
Calcium is (). | [
"a compound",
"an elementary substance"
] | 1 | Calcium is a metal found in substances that make up your teeth and bones. The chemical formula for calcium is Ca. | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | You can tell whether calcium is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for calcium contains one atomic symbol: Ca. So... |
As the wind pushes on the umbrella, what is the direction of the opposing force? | [
"away from Ivan",
"toward Ivan"
] | 1 | The text below describes a pair of opposing forces. Opposing forces act on an object in opposite directions. Read the text. Then answer the question below.
Ivan uses his umbrella on a windy day. Think about two of the forces that act on the umbrella:
Ivan pulls toward himself.
The wind pushes away from Ivan. | closed choice | grade3 | natural science | physics | Force and motion | How do balanced and unbalanced forces affect motion? | A force is a push or a pull that acts on an object. Each force acts on an object in a certain direction. If two forces act on an object in opposite directions, they are called opposing forces. | Find the direction the wind pushes on the umbrella.
Ivan uses his umbrella on a windy day. Think about two of the forces that act on the umbrella:
Ivan pulls toward himself.
The wind pushes away from Ivan.
The text tells you that the wind pushes away from Ivan. The opposite direction is toward Ivan. So, the direction o... | |
Not supported with pagination yet | Based on this information, what is Dipper's phenotype for the fur length trait? | [
"short fur",
"long fur"
] | 1 | In a group of Syrian hamsters, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for short fur (F) is dominant over the allele for long fur (f).
Dipper is a Syrian hamster from this group. Dipper has the homozygous genotype ff for the ... | closed choice | grade6 | 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 ... | Dipper's genotype for the fur length gene is ff. Dipper's genotype of ff has only f alleles. The f allele is for long fur. So, Dipper's phenotype for the fur length trait must be long fur.
To check this answer, consider whether Dipper's alleles are dominant or recessive. The allele for short fur (F) is dominant over th... |
Which property do these two objects have in common? | [
"breakable",
"smooth"
] | 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 breakable object will break into pieces if you drop it. The rubber ball is not breakable.
A smooth object is not scratchy or rough. Both objects are smooth.
The property that both objects have in common is smooth. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1.",
"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. | 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,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The larger the magnets, the greater the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is larger in Pair 2 than in Pair 1. So, the magnitud... | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade3 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The north pole of one magnet is closest to the north pole of the other magnet. Poles that are the same repel. So, these magnets will repel each other. | |
Not supported with pagination yet | Which figure of speech is used in this text?
The assassination of John F. Kennedy on November 22, 1963, was as shocking as an earthquake, leaving Americans feeling shaken and vulnerable. | [
"simile",
"alliteration"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text includes a simile, using like or as to compare two things that are not actually alike.
As shocking as an earthquake compares the assassination of President Kennedy to an earthquake. | |
Not supported with pagination yet | What information supports the conclusion that Brandon inherited this trait? | [
"Brandon and his father both have short hair.",
"Brandon's parents were born with straight hair. They passed down this trait to Brandon."
] | 1 | Read the description of a trait.
Brandon has straight 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.... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
I don't trust Professor Harper's findings. Another researcher at her university was caught falsifying data. So, it's likely Professor Harper has, too. | [
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"guilt by association: a negative association intended to discredit someone or something",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 1 | closed choice | grade9 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Professor Harper's research is untrustworthy because someone else at her university was caught falsifying data. However, this isn't necessarily true. The practices of one researcher at a university do not necessarily reflect the practices of another researcher at the same university. This illustrat... | |
What is the name of the colony shown? | [
"Iowa",
"New Jersey",
"New York",
"Maryland"
] | 1 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Jersey. | |||
Not supported with pagination yet | Which correctly shows the title of a short story? | [
"\"End of the Line\"",
"End of the Line"
] | 0 | closed choice | grade9 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, article, or short story should be in quotation marks.
"You Are My Sunshine" | A short story should be in quotation marks.
The correct title is "End of the Line." | |
Not supported with pagination yet | Select the living thing. | [
"manta ray",
"computer",
"soap",
"yo-yo"
] | 0 | closed choice | grade4 | natural science | biology | Classification | Identify living and nonliving things | All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell.
All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change.
All... | A computer is not a living thing.
A computer does not have all the traits of a living thing. It does many useful things, and even responds to the world around it. But it does not grow. It does not need food or water.
A yo-yo is not a living thing.
Yo-yos do not have all of the traits of living things. They do not grow ... | |
Not supported with pagination yet | What is the temperature of a bowl of ice cream? | [
"37°C",
"37°F"
] | 1 | Select the better estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Estimate temperatures | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units.
212°F | Water boils | 100°C
98.6°F | Body temperature | 37°C
68°F ... | The better estimate for the temperature of a bowl of ice cream is 37°F.
37°C is too hot. |
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Malachite is a solid. It is formed in nature.",
"Shampoo is a liquid. It is made in a factory.",
"Quartz is a pure substance. It is formed in nature."
] | 1 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify minerals using properties | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Malachite is a mineral.
Shampoo is made in a factory. But all minerals are formed in nature.
Shampoo is a liquid. But all minerals are solids.
So, shampoo is not a mineral.
Quart... | |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"10°C",
"35°C",
"40°C"
] | 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 Celsius (°C). Celsius is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Celsius ... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid lines up with 10. So, the temperature is 10°C. | |
Not supported with pagination yet | Which is a compound sentence? | [
"Carmen and her sisters drew a map of the United States and hung it on the wall.",
"An ostrich cannot fly, so it must run away from danger."
] | 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 first sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction so.
An ostrich cannot fly, so it must run away from danger. | |
Not supported with pagination yet | What information supports the conclusion that Dylan acquired this trait? | [
"Dylan's scar was caused by an accident. He cut his arm when he fell off his bicycle.",
"Some scars fade more quickly than others."
] | 0 | Read the description of a trait.
Dylan has a scar on his right arm. | closed choice | grade5 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which bird's beak is also adapted to crack large, hard nuts? | [
"budgerigar",
"palm cockatoo"
] | 1 | Scarlet macaws live in the forests of Central and South America. They eat large seeds and nuts. The shape of the 's beak is adapted to crack open large, hard nuts.
Figure: scarlet macaw. | 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 scarlet macaw.
The scarlet macaw has a thick hooked beak. Its beak is adapted to crack large, hard nuts. The scarlet macaw uses its thick beak to crack the shell of a nut by squeezing it. The hooked shape of the beak can help the bird hold the nut in place while cracking it.
Now look at each ... | |
Not supported with pagination yet | Using only these supplies, which question can Omar investigate with an experiment? | [
"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?",
"Do toy cars with plastic wheels go faster down the cardboard ramp than toy cars with metal wheels?"
] | 1 | Omar and his sister are building ramps to race their toy cars down. Omar 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 feet lo... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Which of the following could Olivia and Kayla's test show? | [
"if the concrete from each batch took the same amount of time to dry",
"if a new batch of concrete was firm enough to use"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | Complete the statement. Assume that the car's mass did not change.
The gravitational potential energy stored between the car and Earth () as the car slowed to a stop. | [
"decreased",
"stayed the same",
"increased"
] | 1 | Read the text about an object in motion.
Hannah was driving her car on a road when she saw a red light ahead. She slowed the car to a stop along the flat road. | closed choice | grade7 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between the car and the center of Earth changed.
Because the road was flat, each point on the road was the same distance from the center of Earth. As the car slowed to a stop, the distance between the car and the center of Earth stayed the same. So, the gravitational potential energy stored... |
Which animal's skin is also adapted for survival in cold places? | [
"musk ox",
"blue poison dart frog"
] | 0 | live in the forests and mountains of Asia and Europe. The lynx's skin is adapted to help the animal survive in cold places.
Figure: Eurasian lynx. | 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 Eurasian lynx.
During the winter, the Eurasian lynx has thick fur covering its skin. Its skin is adapted for survival in cold places. The Eurasian lynx uses its fur to keep warm in cold weather.
Now look at each animal. Figure out which animal has a similar adaptation.
The musk ox has skin wi... | |
Which property do these three objects have in common? | [
"blue",
"salty",
"sticky"
] | 2 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
Potato chips have a salty taste. The bubble gum and the honey are not salty.
A sticky object can attach or stick to other things. All three objects are sticky.
Blue is a color.
This color is blue. The bubble gum and the honey are not blue.
The proper... | |
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 greater in Pair 1.",
"The magnitude 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, but some of them are different sizes. | closed choice | grade7 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Complete the sentence.
Pollination is what happens when (). | [
"pollen lands on a female cone",
"sperm fuses with an egg"
] | 0 | Male cones make pollen. Wind can blow pollen from a male cone to a female cone. | closed choice | grade4 | natural science | biology | Plants | Describe and construct conifer life cycles | Conifers are plants that grow cones. Conifers use their cones to reproduce, or make new plants like themselves. How do conifers use their cones to reproduce?
Conifers can grow male and female cones. Male cones make pollen, and female cones make eggs. Pollination is what happens when wind blows pollen from male cones on... | When pollen lands on a female cone, it is called pollination. This photograph shows wind blowing pollen from the male cones on a Japanese cedar tree.
After a female cone is pollinated, its eggs can be fertilized. Fertilization is what happens when male cells from the pollen combine with eggs. | |
Complete the text to describe the diagram.
Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium. | [
"to the left than to the right",
"to the right than to the left"
] | 1 | The diagram below shows a solution with one solute. Each solute particle is represented by a green ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles.
The diagram shows how the solution can change over time ... | closed choice | grade6 | natural science | chemistry | Solutions | Diffusion across membranes | In a solution, solute particles move and spread throughout the solvent. The diagram below shows how a solution can change over time. Solute particles move from the area where they are at a higher concentration to the area where they are at a lower concentration. This movement happens through the process of diffusion.
A... | Look at the diagram again. It shows you how the solution changed during the process of diffusion.
Before the solute particles reached equilibrium, there were 8 solute particles on the left side of the membrane and 4 solute particles on the right side of the membrane.
When the solute particles reached equilibrium, there... | |
Which months have average temperatures of 30°C or higher in Dubai? | [
"October through February",
"May through September",
"July through November"
] | 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 Dubai, look at the graph.
Choice "Feb" is incorrect.
Choice "May" is incorrect.
Choice "Jul" is incorrect.
Choice "Sep" is incorrect.
Choice "Oct" is incorrect.
Choice "Nov" is incorrect.
The average temperatures in May, June, July, August, and September are all 30°C or hig... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
plead - protest | [
"pasture",
"pony"
] | 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 pony is between the guide words plead - protest, it would be found on that page. | |
Which country is highlighted? | [
"Saint Kitts and Nevis",
"Antigua and Barbuda",
"Saint Lucia",
"Saint Vincent and the Grenadines"
] | 0 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Kitts and Nevis. | |||
What can happen to an egg and a sperm? | [
"They can fuse and form fertilized eggs.",
"They can grow into heart-shaped plants."
] | 0 | This diagram shows the life cycle of a fern. | closed choice | grade7 | natural science | biology | Plant reproduction | Moss and fern life cycles | Fern plants reproduce using both asexual reproduction and sexual reproduction.
Mature ferns have flat leaves called fronds. Ferns have structures that look like small dots on the underside of their fronds. These structures are called spore cases. The mature ferns use asexual reproduction to make spores. When the spore ... | A sperm swims through a water drop on the heart-shaped plant to get to an egg. The sperm and egg can fuse to form a fertilized egg. The fertilized egg can then grow into a mature fern.
A heart-shaped plant grows from a spore, not from a fertilized egg. | |
Which solution has a higher concentration of green particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 1 | The diagram below is a model of two solutions. Each green ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... | |
Not supported with pagination yet | Suppose Kelly decides to go as a superhero. Which result would be a cost? | [
"Kelly will save some time and money. She won't have to go out and get a new costume.",
"Kelly will give up the chance to wear the costume she is more excited about."
] | 1 | Kelly is deciding whether to go as a vampire or a superhero to a costume party. She would rather go as a vampire. But she already has a superhero costume. | closed choice | grade5 | 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 Kelly wants or needs:
Kelly will give up the chance to wear the costume she is more excited about. |
Which continent is highlighted? | [
"North America",
"Antarctica",
"Europe"
] | 2 | closed choice | grade2 | social science | geography | Geography | Identify oceans and continents | A continent is one of the seven largest areas of land on earth. | This continent is Europe. | ||
What is the capital of Colorado? | [
"Colorado Springs",
"Boulder",
"Denver",
"Juneau"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | Based on this information, what is Fishie's phenotype for the body color trait? | [
"a gray body",
"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 for a golden body (b) is recessive to the allele for a gray body (B).
Fishie is a guppy from this group. Fishie has the homozygous genotype bb for the body... | closed choice | grade6 | 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 ... | Fishie's genotype for the body color gene is bb. Fishie's genotype of bb has only b alleles. The b allele is for a golden body. So, Fishie's phenotype for the body color trait must be a golden body.
To check this answer, consider whether Fishie's alleles are dominant or recessive. The allele for a golden body (b) is re... |
Not supported with pagination yet | Does this passage describe the weather or the climate?
It is snowing in Emmett's town today. | [
"weather",
"climate"
] | 0 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade3 | 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.
It is snowing in Emmett's town today.
This passage tells you about the precipitation today in Emmett's town. It describes the atmosphere at a certain place and time. So, this passage describes the weather. |
What is the capital of Texas? | [
"Bismarck",
"Lexington",
"Atlanta",
"Austin"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Austin is the capital of Texas. | |||
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade3 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Poles that are different attract. So, these magnets will attract each other. | |
What is the name of the colony shown? | [
"Kentucky",
"Mississippi",
"Maryland",
"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?
chicken cooking in an oven
a penny tarnishing | [
"Both are caused by heating.",
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by cooling."
] | 1 | 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.
Cooking chicken is a chemical change. The heat causes the matter in the chicken to change. Cooked chicken and raw chicken are different types of matter.
Metal turning less shiny over time is called tarnishing. A penny tarnishing is a chemical change. When air touches the penny, the surf... | |
What is the capital of New Hampshire? | [
"Providence",
"Montgomery",
"Manchester",
"Concord"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Concord is the capital of New Hampshire. | |||
What is the capital of Arizona? | [
"Boise",
"Phoenix",
"Frankfort",
"Tucson"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Phoenix is the capital of Arizona. | |||
Not supported with pagination yet | Which tense does the sentence use?
Jim will pop the popcorn. | [
"future tense",
"present tense",
"past tense"
] | 0 | 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 future tense. You can tell because it uses will before the main verb, pop. The verb tells you about something that is going to happen. | |
Not supported with pagination yet | Which tray of lasagna has less thermal energy? | [
"the hotter tray of lasagna",
"the colder tray of lasagna"
] | 1 | Two trays of lasagna 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 trays of lasagna are made of the same material and have the same mass. So, the colder tray of lasagna has less thermal energy. |
Not supported with pagination yet | What information supports the conclusion that Debbie inherited this trait? | [
"Debbie's hair is the same color as her brown eyes.",
"Debbie's father has brown eyes. He passed this trait down to Debbie."
] | 1 | Read the description of a trait.
Debbie has brown eyes. | 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 name of the colony shown? | [
"Rhode Island",
"Vermont",
"Virginia",
"Maine"
] | 0 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Rhode Island. | |||
In this food web, which organism contains matter that eventually moves to the mushroom? | [
"rough-legged hawk",
"barren-ground caribou"
] | 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 | grade7 | natural science | biology | Ecological interactions | Interpret food webs II | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows to the mushroom.There are two paths matter can take from the barren-ground caribou to the mushroom: barren-ground caribou->mushroom. barren-ground caribou->grizzly bear->mushroom. There is one path matt... | |
Not supported with pagination yet | Select the elementary substance. | [
"ruthenium (Ru)",
"carbon dioxide (CO2)",
"dichloromethane (CH2Cl2)"
] | 0 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using chemical formulas | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | 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 rhenium contains one atomic symbol: Re. So, rhenium is composed of only one chemical element. Therefore, rhenium is an elementary substance.... | |
Which of these states is farthest east? | [
"Mississippi",
"Indiana",
"Pennsylvania",
"Wisconsin"
] | 2 | 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 east arrow is pointing. Pennsylvania is farthest east. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
At twenty-one, Wesley felt overwhelmed with adult responsibilities and wished he could fly off to Neverland. | [
"simile",
"allusion"
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses an allusion, a brief reference to someone or something well known.
Neverland alludes to the story of Peter Pan, a boy who lived in Neverland and never grew up. | |
Not supported with pagination yet | Using only these supplies, which question can Rhianna investigate with an experiment? | [
"Does a catapult with a longer arm launch a rubber ball farther than a catapult with a shorter arm?",
"Does a rubber ball travel farther when launched from a metal catapult or from a wooden catapult?",
"Does a heavier ball travel farther than a lighter ball when launched from a catapult?"
] | 0 | Rhianna visits a museum about ancient Greece. She notices an exhibit with models of wooden catapults that were used to launch large rocks across battlefields. She wonders what factors affect how far a catapult can launch an object. So, she decides to design an experiment. She has the following supplies available:
a woo... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
What is the capital of Arizona? | [
"Newport",
"Tallahassee",
"Tucson",
"Phoenix"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Phoenix is the capital of Arizona. | |||
Complete the statement.
Methanol is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents a molecule of methanol. Methanol is found in antifreeze, which is used in car engines to prevent certain liquids from freezing in cold weather. | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | All substances are 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 some element... | Count the number of chemical elements represented in the model. Then, decide if methanol is an elementary substance or a compound.
In this model, each ball is labeled with C for carbon, H for hydrogen, or O for oxygen. So, the model shows you that methanol is made of three chemical elements bonded together.
Substances ... | |
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Hematite is a solid. It is formed in nature.",
"Fluorite is not made by living things. It is a pure substance.",
"Soap is not a pure substance. It is a solid."
] | 2 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify minerals using properties | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Soap is not a pure substance. But all minerals are pure substances.
So, soap is not a mineral.
Hematite is a mineral.
Fluorite is a mineral. | |
Not supported with pagination yet | Which text structure does the text use? | [
"problem-solution",
"descriptive"
] | 0 | Read the text.
Khodr Farhat is a Michigan man on a mission. When he eats out at a restaurant, he faces an issue that most people don't. Khodr can't see well enough to read the menu. He usually has friends read menus aloud to him. However, this strategy doesn't let him take his time with the menu or dine independently. ... | closed choice | grade4 | language science | writing-strategies | Text structure | Identify text structures | Writers can organize their ideas in different ways. These ways of organizing writing are called text structures. When you can tell how a text is organized, it's easier to understand how the writer's ideas go together. You can also use these text structures to organize your own writing.
| Text structure | Where you mig... | The text uses a problem-solution structure to show how Khodr Farhat has worked to get braille menus into restaurants. In the text, certain words and phrases help to organize ideas in a problem-solution structure. Notice the words issue, strategy, help, and allow. |
Which of these states is farthest west? | [
"South Carolina",
"Florida",
"Missouri",
"Ohio"
] | 2 | 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. Missouri is farthest west. | ||
Not supported with pagination yet | Is the following statement true or false?
Plant cells do not have cytoplasm. | [
"false",
"true"
] | 0 | true-or false | grade4 | natural science | biology | Cells | Cell part functions: true or false | Plant cells do not have cytoplasm.
This statement is false. All cells have cytoplasm. The cytoplasm fills and maintains the space inside the cell. | ||
What is the name of the colony shown? | [
"Connecticut",
"West Virginia",
"Maryland",
"Rhode Island"
] | 3 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Rhode Island. | |||
Not supported with pagination yet | Which word does not rhyme? | [
"game",
"coat",
"came"
] | 1 | 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 came and game rhyme. They both end with the ame sound.
The word coat does not rhyme. It ends with a different sound. | |
Not supported with pagination yet | What is the mass of a floor lamp? | [
"12 tons",
"12 pounds",
"12 ounces"
] | 1 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a floor lamp is 12 pounds.
12 ounces is too light and 12 tons is too heavy. |
Not supported with pagination yet | Which is a complete sentence? | [
"After the show, all of the actors bow.",
"Haru is from Japan I am from China."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence 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 run-on sentence is made up of two sentences that are joined without end punctuation or with just a comma.
I knocked on the door it opened.
It started raining, we ran inside.
To fix a run-on ... | After the show, all of the actors bow is a complete sentence. The subject is all of the actors, and the verb is bow. | |
Complete the text to describe the diagram.
Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium. | [
"to the left than to the right",
"to the right than to the left"
] | 1 | The diagram below shows a solution with one solute. Each solute particle is represented by a purple ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles.
The diagram shows how the solution can change over time... | closed choice | grade6 | natural science | chemistry | Solutions | Diffusion across membranes | In a solution, solute particles move and spread throughout the solvent. The diagram below shows how a solution can change over time. Solute particles move from the area where they are at a higher concentration to the area where they are at a lower concentration. This movement happens through the process of diffusion.
A... | Look at the diagram again. It shows you how the solution changed during the process of diffusion.
Before the solute particles reached equilibrium, there were 5 solute particles on the left side of the membrane and 3 solute particles on the right side of the membrane.
When the solute particles reached equilibrium, there... | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
Mrs. Campbell is an owl, working at night and sleeping during the day. | [
"simile",
"metaphor"
] | 1 | closed choice | grade4 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | Mrs. Campbell is an owl, working at night and sleeping during the day.
The words Mrs. Campbell and owl are compared without the word like or as. So, the sentence uses a metaphor. | |
What is the name of the colony shown? | [
"New Hampshire",
"Maryland",
"Washington, D.C.",
"Maine"
] | 1 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Maryland. | |||
Is wet paint a solid, a liquid, or a gas? | [
"a gas",
"a liquid",
"a solid"
] | 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... | Wet paint is a liquid. A liquid takes the shape of any container it is in.
If you pour wet paint out of a can, the paint will change shape. But the wet paint will still take up the same amount of space. | ||
Which country is highlighted? | [
"Kiribati",
"the Marshall Islands",
"Nauru",
"Tuvalu"
] | 0 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Kiribati. | |||
Not supported with pagination yet | What information supports the conclusion that Tiana acquired this trait? | [
"Tiana is in the Air Force. She flies a plane almost every day.",
"Tiana can fly a plane on cloudy days and at night.",
"A pilot taught Tiana how to fly a plane."
] | 2 | Read the description of a trait.
Tiana knows how to fly a plane. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Identify the question that Rudy's experiment can best answer. | [
"Does the type of flour used in the muffins affect the number of muffins that turn brown after 30 minutes in the oven?",
"Do muffins made with white flour have larger volumes than muffins made with whole wheat flour?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Rudy made six batches of muffins over the course of one day. He used whole wheat flour in three of the batches and white flour in the other three batches. He divided the batter into muffin tins, using two ounces of batt... | 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... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
"There's nothing I love more than skipping lunch," Mr. Harper told the flight attendant when he learned that no food would be available on his cross-country flight. | [
"personification",
"verbal irony"
] | 1 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
Nothing I love more shows verbal irony because Mr. Harper is probably upset that there isn't anything to eat. | |
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... | Each particle in the two samples has the same mass, but the particles in sample A 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 kinetic energy, sampl... | |
Not supported with pagination yet | Which organ produces the power to move the body? | [
"skin",
"brain",
"skeleton",
"muscles"
] | 3 | closed choice | grade5 | natural science | biology | Animals | Human organs and their functions | |||
What is the capital of Maine? | [
"Portland",
"Augusta",
"Hartford",
"Annapolis"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Augusta is the capital of Maine. | |||
Not supported with pagination yet | Would you find the word mermaid on a dictionary page with the following guide words?
marsh - muffle | [
"yes",
"no"
] | 0 | yes or no | grade4 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since mermaid is between the guide words marsh - muffle, it would be found on that page. | |
What can Mary and Lisa trade to each get what they want? | [
"Mary can trade her tomatoes for Lisa's carrots.",
"Lisa can trade her almonds for Mary's tomatoes.",
"Mary can trade her tomatoes for Lisa's broccoli.",
"Lisa can trade her broccoli for Mary's oranges."
] | 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.
Mary and Lisa open their lunch boxes in the school cafeteria. Neither Mary nor Lisa got everything that they wanted. The table be... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Mary wants broccoli. Lisa 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. | ||
Select the organism in the same species as the great gray owl. | [
"Strix nebulosa",
"Cyanocitta stelleri",
"Goura scheepmakeri"
] | 0 | This organism is a great gray owl. Its scientific name is Strix nebulosa. | 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 great gray owl's scientific name is Strix nebulosa.
Cyanocitta stelleri does not have the same scientific name as a great gray owl. So, Strix nebulosa and Cyanocitta stelleri are not in the same species.
Goura scheepmakeri does not have the same scientific name as a great gray owl. So, Strix nebulosa and Goura scheep... | |
Which better describes the Jackson Reef ecosystem? | [
"It has salty water. It also has only a few types of organisms.",
"It has salty water. It also has many different types of organisms."
] | 1 | Figure: Jackson Reef.
Jackson Reef is a tropical coral reef ecosystem in the Red Sea, near Egypt. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A tropical coral reef is a type of ecosystem. Tropical coral reefs have the following features: shallow, salty water, bright sunlight, and many different types of organisms. So, Jackson Reef has salty water. It also has many different types of organisms. |
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.