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Not supported with pagination yet | What information supports the conclusion that Brendan acquired this trait? | [
"Brendan's mother speaks one language.",
"Brendan learned to speak two languages in school."
] | 1 | Read the description of a trait.
Brendan speaks two languages. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which country is highlighted? | [
"Vanuatu",
"Tuvalu",
"Fiji",
"Solomon Islands"
] | 2 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Fiji. | |||
Not supported with pagination yet | Which correctly shows the title of a poem? | [
"\"First Day at School\"",
"First Day at School"
] | 0 | closed choice | grade3 | 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, or article should be in quotation marks.
"You Are My Sunshine" | A poem should be in quotation marks.
The correct title is "First Day at School." | |
Which animal's feet are also adapted for swimming? | [
"European river otter",
"short-beaked echidna"
] | 0 | The is found in rivers and streams in South America. It eats small fish, worms, and crustaceans, which it often finds underwater. Its feet are adapted for swimming.
Figure: Suriname toad. | closed choice | grade4 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the Suriname toad.
The Suriname toad has webbed feet. Its feet are adapted for swimming. As it swims, the Suriname toad uses its webbed feet to push itself through water.
Now look at each animal. Figure out which animal has a similar adaptation.
The European river otter has webbed feet. Its feet ... | |
Which property do these two objects have in common? | [
"sticky",
"colorful"
] | 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 sticky object can stick to other things. Neither of the objects are sticky.
A colorful object has one or more bright colors. Both objects are colorful.
The property that both objects have in common is colorful. | |
Not supported with pagination yet | Which is the smoothest? | [
"concrete sidewalk",
"sandpaper",
"paper"
] | 2 | closed choice | grade4 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | Smooth is a property. A smooth material is not rough or bumpy.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the paper is the smoothest. If you touch a piece of paper, it will not feel rough or bumpy. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"neither; the samples have the same temperature",
"sample A",
"sample B"
] | 1 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | 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... | |
Not supported with pagination yet | Complete the sentence.
Shaking up salad dressing 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... | Shaking up salad dressing is a physical change. The different parts mix together, but they are still made of the same type of matter. | |
Not supported with pagination yet | Which organ supports the body's weight? | [
"skeleton",
"stomach",
"lungs"
] | 0 | closed choice | grade3 | natural science | biology | Animals | Human organs and their functions | |||
Not supported with pagination yet | What kind of sentence is this?
I can't wait to get my driver's license! | [
"declarative",
"interrogative",
"exclamatory"
] | 2 | closed choice | grade9 | 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 always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An imperative sentence makes a request or a demand and usually ends with a period. If a demand shows strong feeling, it can ... | The sentence is a statement that shows strong feeling and ends with an exclamation point. It is an exclamatory sentence. | |
What is the capital of Oregon? | [
"Frankfort",
"Salt Lake City",
"Salem",
"Portland"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Salem is the capital of Oregon. | |||
What is the capital of Colorado? | [
"Santa Fe",
"Boulder",
"Colorado Springs",
"Denver"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | Select the plant. | [
"Snowy owls eat small animals.",
"Rosemary bushes have many thin leaves."
] | 1 | closed choice | grade2 | natural science | biology | Classification | Identify plants and animals | Plants and animals are living things. Living things are called organisms.
Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can.
Animals also come in many shapes and sizes. Most animals can move around. A... | A rosemary bush is a plant. It has many thin leaves.
Rosemary has a strong smell. People use its leaves to give food flavor.
A snowy owl is an animal. It eats small animals.
Snowy owls live in cold places. Snowy owls have feathers on their feet to protect them from the cold. | |
Which statement describes the Taklamakan Desert ecosystem? | [
"It has dry, thin soil.",
"It has warm summers and mild winters.",
"It has a medium amount of rain."
] | 0 | Figure: Taklamakan Desert.
The Taklamakan Desert is a cold desert ecosystem in northwestern China. Towns in this desert were stops along the Silk Road, a historical trade route between China and eastern Europe. | 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 cold desert is a type of ecosystem. Cold deserts have the following features: a small amount of rain or snow, dry, thin soil, and long, cold winters. So, the following statement describes the Taklamakan Desert ecosystem: a small amount of rain or snow, dry, thin soil, and long, cold winters. It has dry, thin soil. Th... | |
Not supported with pagination yet | How long is a basketball court? | [
"31 feet",
"31 yards",
"31 inches"
] | 1 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
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 31 yards.
31 inches and 31 feet are both too short. |
Not supported with pagination yet | Which figure of speech is used in this text?
I am just going outside and may be some time.
—Captain Lawrence Oates, Antarctic explorer, before going out into subzero temperatures to face certain death | [
"understatement",
"chiasmus"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses understatement, which involves deliberately representing something as less serious or important than it really is.
May be some time is an understatement, since the frostbitten and weakened Oates knew that he was heading to his death. | |
Which of the following could Bruce'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... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
Milton! Thou shouldst be living at this hour
England hath need of thee . . .
—William Wordsworth, "London, 1802" | [
"antithesis",
"apostrophe"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses apostrophe, a direct address to an absent person or a nonhuman entity.
Milton! is a direct address to Milton, an absent person. (John Milton was a British poet who died in 1674, over a century before this poem was written.) | |
Not supported with pagination yet | What information supports the conclusion that Tessa acquired this trait? | [
"Tessa can cook food over a fire.",
"Tessa learned how to build a fire at summer camp."
] | 1 | Read the description of a trait.
Tessa knows how to build a fire. | 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 animal is also adapted for climbing trees? | [
"lar gibbon",
"African forest elephant"
] | 0 | Vervet monkeys live in the grasslands and forests of Africa. They climb trees to find food and shelter. The 's hands and feet are adapted for climbing trees.
Figure: vervet monkey. | closed choice | grade4 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the vervet monkey.
The vervet monkey has long fingers and toes. It is adapted for climbing trees. The vervet monkey uses its long fingers and toes to hold on to branches while climbing.
Now look at each animal. Figure out which animal has a similar adaptation.
The lar gibbon has long fingers and ... | |
Select the bird below. | [
"white stork",
"koala"
] | 0 | Birds have feathers, two wings, and a beak. A barn owl is an example of a bird. | 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 koala is a mammal. It has fur and feeds its young milk.
A white stork is a bird. It has feathers, two wings, and a beak. | |
Not supported with pagination yet | What information supports the conclusion that Luther acquired this trait? | [
"Luther learned to identify insects by reading many books about insects.",
"Luther likes to look at butterflies and beetles."
] | 0 | Read the description of a trait.
Luther is good at identifying insects. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which continent is highlighted? | [
"North America",
"South America",
"Africa"
] | 0 | 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 North America. | ||
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"push the door closed",
"shove the door closed"
] | 1 | 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... | Shove the door closed has a more negative connotation. If you shove the door closed, you push it in a rough or mean way. | |
Not supported with pagination yet | Which text message is more formal? | [
"Heads up! Johnson is here. In the lobby.",
"Ms. Johnson is already here. She's waiting in the lobby."
] | 1 | 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 second text message is more formal. It uses complete sentences, avoids slang (heads up), and uses the person's title (Ms. Johnson). The other text message includes more casual language and sentence fragments. | |
Not supported with pagination yet | Which correctly shows the title of a book? | [
"\"Goldilocks and the Three Dinosaurs\"",
"***Goldilocks and the Three Dinosaurs***"
] | 1 | 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 book should be in italics.
The correct title is **Goldilocks and the Three Dinosaurs**. | |
Which better describes the Białowieża Forest ecosystem? | [
"It has soil that is poor in nutrients. It also has only a few types of trees.",
"It has cold, wet winters. It also has only a few types of trees."
] | 1 | Figure: Białowieża Forest.
The Białowieża Forest is a temperate deciduous forest ecosystem in Poland and Belarus. | 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 temperate deciduous forest is a type of ecosystem. Temperate deciduous forests have the following features: warm, wet summers and cold, wet winters, soil that is rich in nutrients, and only a few types of trees. So, the Białowieża Forest has cold, wet winters. It also has only a few types of trees. | |
Not supported with pagination yet | Select the animal that has a backbone. | [
"eastern newt",
"dung beetle"
] | 0 | Hint: Mammals, birds, fish, reptiles, and amphibians all have backbones. | closed choice | grade2 | natural science | biology | Classification | Identify animals with and without backbones | Some animals have a backbone. The backbone is made of many bones in an animal's back. An animal's backbone helps connect the different parts of its body. In the drawings below, each animal's backbone is colored orange.
Other animals do not have a backbone. In fact, these animals don't have any bones! Some animals witho... | A dung beetle is an insect. Like other insects, a dung beetle does not have a backbone. It has a hard outer cover.
An eastern newt is an amphibian. Like other amphibians, an eastern newt has a backbone. |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade2 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Poles that are different attract. So, these magnets will attract each other. | |
Not supported with pagination yet | The city of Oxford has been one of the world's biggest makers of cough drops for many years. But last month, Oxford's cough drop factories were destroyed by floods. What will probably happen to the overall supply of cough drops? | [
"The supply will probably go down.",
"The supply will probably go up."
] | 0 | closed choice | grade3 | social science | economics | Supply and demand | Understand overall supply and demand | Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply.
| Resources | Number of producers or suppliers | Expected change in demand
Supply goe... | Floods destroyed the cough drop factories in Oxford. The number of producers of cough drops went down. So, the supply of cough drops will probably go down. | |
Not supported with pagination yet | Which figure of speech is used in this text?
"There's nothing I love more than skipping lunch," Mr. Taylor told the flight attendant when he learned that no food would be available on his cross-country flight. | [
"verbal irony",
"allusion"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
Nothing I love more shows verbal irony because Mr. Taylor is probably upset that there isn't anything to eat. | |
Not supported with pagination yet | Which soccer ball has more thermal energy? | [
"the colder soccer ball",
"the hotter soccer ball"
] | 1 | Two soccer balls are identical except for their temperatures. | 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 soccer balls are made of the same material and have the same mass. So, the hotter soccer ball has more thermal energy. |
Which is this organism's common name? | [
"Aequorea victoria",
"crystal jellyfish"
] | 1 | This organism is Aequorea victoria. It is also called a crystal jellyfish. | closed choice | grade8 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Aequorea victoria is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Aequorea victoria is the organism's scientific name. So, you know that crystal jellyfish is the common name. | |
Not supported with pagination yet | What information supports the conclusion that Fred inherited this trait? | [
"Fred's coworker also has curly hair.",
"Fred and his biological parents have brown hair.",
"Fred's biological father has curly hair."
] | 2 | Read the description of a trait.
Fred has curly hair. | closed choice | grade7 | 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 | Select the elementary substance. | [
"chloromethanol (CH3ClO)",
"sulfur dioxide (SO2)",
"radon (Rn)"
] | 2 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using chemical formulas | Every substance around you is made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds.
Every chemical element is represented by its own symbol. For s... | Look at the chemical formula for each substance, and count the number of symbols in the formula. Then, decide if the substance is an elementary substance. The chemical formula for sulfur dioxide contains two symbols: S for sulfur and O for oxygen. So, sulfur dioxide is made of two chemical elements bonded together. Sub... | |
Not supported with pagination yet | How long is a caterpillar? | [
"24 millimeters",
"24 kilometers",
"24 meters",
"24 centimeters"
] | 0 | Select the best estimate. | closed choice | grade6 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a caterpillar is 24 millimeters.
24 centimeters, 24 meters, and 24 kilometers are all too long. |
What is the name of the colony shown? | [
"Georgia",
"Massachusetts",
"New Hampshire",
"Rhode Island"
] | 0 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Georgia. | |||
Which of these states is farthest west? | [
"New York",
"New Hampshire",
"Indiana",
"Maryland"
] | 2 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Indiana is farthest west. | ||
Which property matches this object? | [
"stretchy",
"hard"
] | 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.
A hard object keeps its shape when you squeeze it. The balloon is not hard.
A stretchy object gets longer when you pull on it. The balloon is stretchy. | |
Which property do these three objects have in common? | [
"sweet",
"stretchy",
"fuzzy"
] | 0 | 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.
A fuzzy object is covered in soft hair. None of the objects are fuzzy.
A stretchy object gets longer when you pull on it. The melted marshmallow is stretchy, but the candy sprinkles and the ice cream sundae are not.
Sugar has a sweet taste. All three... | |
What is the capital of Connecticut? | [
"Trenton",
"New Haven",
"Hartford",
"New Orleans"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Hartford is the capital of Connecticut. | |||
Not supported with pagination yet | What kind of sentence is this?
I can't believe this is Tracy's first time seeing the Pacific Ocean! | [
"exclamatory",
"declarative",
"interrogative"
] | 0 | closed choice | grade7 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement, and it always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An interrogative sentence is a question, and it always ends with a question mark.
Do you have any plans for the upcoming... | The sentence tells about something, but it shows surprise and ends with an exclamation point. It is an exclamatory sentence. | |
Not supported with pagination yet | What do these two changes have in common?
a piece of avocado turning brown
milk going sour | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes.",
"Both are only physical 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.
A piece of avocado turning brown is a chemical change. The avocado reacts with oxygen in the air to form a different type of matter.
If you scrape off the brown part of the avocado, the inside will still be green. The inside hasn't touched the air. So the chemical change hasn't happened... | |
Which animal is also adapted to be camouflaged among green leaves? | [
"green mantis",
"common hawk-cuckoo"
] | 0 | Leaf-mimic katydids are insects that live in places like tropical forests. This katydid is adapted to be camouflaged among green leaves.
Figure: leaf-mimic katydid. | 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 leaf-mimic katydid.
The leaf-mimic katydid has a green leaf-shaped body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The green mantis has a green body. It is adapted to be... | |
Which bird's beak is also adapted to crack hard seeds? | [
"sword-billed hummingbird",
"large ground finch"
] | 1 | Bronze mannikins eat small, hard seeds. The shape of the 's beak is adapted to crack open small, hard seeds.
Figure: bronze mannikin. | 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 bronze mannikin.
The bronze mannikin has a short, thick beak. Its beak is adapted to crack hard seeds. The bronze mannikin uses its short, thick beak to press down on a seed and crack open its hard shell.
Now look at each bird. Figure out which bird has a similar adaptation.
The large ground ... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"After Mary discussed the new research methods with Laura, she decided to try some of them out.",
"After discussing the new research methods with Laura, Mary decided to try some of them out."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun she could refer to Mary or Laura.
After Mary discussed the new research methods with Laura, she decided to try some of them out.
The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so th... | |
Not supported with pagination yet | Complete the sentence.
Cutting a piece of rope is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade2 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two ways matter can change.
In a chemical change, the type of matter changes.
Burning a piece of paper is a chemical change. The paper changes into ash and smoke.
In a physical change, the type of matter stays the same.
Cutting a piece of paper is a physical change. The cut pie... | Cutting a piece of rope is a physical change. The rope is shorter after you cut it. But it is still made of the same type of matter as the uncut rope. | |
Not supported with pagination yet | Would you find the word confuse on a dictionary page with the following guide words?
chair - civilian | [
"yes",
"no"
] | 1 | yes or no | grade7 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since confuse is not between the guide words chair - civilian, it would not be found on that page. | |
Which animal's skin is better adapted as a warning sign to ward off predators? | [
"Spanish shawl nudibranch",
"impala"
] | 0 | Blue poison dart frogs have poisonous glands in their brightly colored skin. The bright colors serve as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: blue poison dart frog. | 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 blue poison dart frog.
The blue poison dart frog has poisonous glands in its brightly colored skin. Its skin is adapted to ward off predators. The bright colors serve as a warning sign that the blue poison dart frog is poisonous.
Now look at each animal. Figure out which animal has a similar ... | |
Not supported with pagination yet | Is there a sentence fragment?
We called a taxi for Mr. Wells. Whose car was towed from the no-parking zone in front of the firehouse. | [
"yes",
"no"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | There is a sentence fragment that does not express a complete thought.
We called a taxi for Mr. Wells. Whose car was towed from the no-parking zone in front of the firehouse.
Here is one way to fix the sentence fragment:
We called a taxi for Mr. Wells, whose car was towed from the no-parking zone in front of the fireho... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Do the instructions say what these screws are used for?",
"Do they say what these screws are used for?"
] | 1 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun they is used without its antecedent.
The first answer choice shows a possible correction for the vague pronoun reference. They has been replaced with the instructions.
Do the instructions say what these screws are used for? | |
Not supported with pagination yet | Compare the motion of three sailboats. Which sailboat was moving at the lowest speed? | [
"a sailboat that moved 20kilometers north in 5hours",
"a sailboat that moved 40kilometers east in 5hours",
"a sailboat that moved 30kilometers east in 5hours"
] | 0 | 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 5 hours. The sailboat that moved 20 kilometers moved the shortest distance in that time. So, that sailboat must have moved at the lowest s... | |
Identify the question that Estelle's experiment can best answer. | [
"Does linen fabric turn darker than cotton fabric when soaked in a mixture of black dye and water?",
"Does fabric turn darker when soaked in a mixture of black dye and water for 15 minutes compared to 30 minutes?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Estelle prepared ten buckets, each with one gallon of boiling water and three tablespoons of black fabric dye. Estelle soaked white linen fabric squares in five of the buckets, and white cotton fabric squares in the oth... | 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... | ||
Not supported with pagination yet | Which tense does the sentence use?
I will try the chicken soup for lunch. | [
"past tense",
"present tense",
"future 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 future tense. You can tell because it uses will before the main verb, try. The verb tells you about something that is going to happen. | |
Which solution has a higher concentration of yellow particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Kenji described the situation he was facing with his boss as a catch-22. | [
"a song",
"literature"
] | 1 | closed choice | grade8 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion catch-22 is literature.
Joseph Heller coined the term "catch-22" in his 1961 novel of the same name. In the novel, if an army pilot wants to avoid dangerous missions, he must be deemed mentally unfit; however, his desire to stay safe proves his sanity, so he can never be excused from a missio... | |
Which property do these three objects have in common? | [
"blue",
"slippery",
"fuzzy"
] | 1 | 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.
Blue is a color.
This color is blue. None of the objects are blue.
A fuzzy object is covered in soft hair. The butter and the wet paint are not fuzzy.
A slippery object is hard to hold onto or stand on. All three objects are slippery.
The property th... | |
Not supported with pagination yet | Using only these supplies, which question can Vince investigate with an experiment? | [
"Do cloth towels dry faster if they are hung in the laundry room or in the backyard?",
"Does a small cloth towel or a large cloth towel dry faster when hung in the backyard?",
"When hung in the laundry room, do black cloth towels or white cloth towels dry more quickly?"
] | 0 | After Vince cleans up a spill, he hangs a wet cloth towel in the laundry room. Two hours later, he notices that the towel has partially dried. He wonders what factors affect how cloth dries. So, he decides to design an experiment. He has the following supplies available:
two identical white cloth towels
water
a clothes... | closed choice | 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 expression of thanks is more formal? | [
"We're so pleased you could join us on our special day. Thank you again for the wonderful gift.",
"We're super happy that you could be with us on our special day. Thanks again for the awesome gift!"
] | 0 | closed choice | grade11 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The second expression of thanks is more formal. It uses more elevated language (we're so pleased). The other expression of thanks is more conversational (super happy, thanks, awesome). | |
Not supported with pagination yet | Complete the statement. Assume that the balloon's mass did not change.
The gravitational potential energy stored between the balloon and Earth () as the balloon floated toward the sky. | [
"stayed the same",
"increased",
"decreased"
] | 1 | Read the text about an object in motion.
Irma was walking with a helium balloon when the balloon's string slipped out of her hand. The balloon floated toward the sky. | 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 balloon and the center of Earth changed.
The balloon moved higher after its string slipped out of Irma's hand. As the balloon floated toward the sky, the distance between the balloon and the center of Earth increased. So, the gravitational potential energy stored between the bal... |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade8 | 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... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | 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 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
My mom is a partner at a prominent law firm; she's not exactly Carol Brady. | [
"television",
"modern history"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
The protean nature of the disease makes it difficult to diagnose.
The word protean is an allusion to the sea god Proteus in Gree... | The source of the allusion Carol Brady is television.
In the television series The Brady Bunch, Carol Brady dedicates herself to the care of her six children and never complains.
The allusion Carol Brady means a devoted homemaker. | |
Not supported with pagination yet | What information supports the conclusion that Akira acquired this trait? | [
"Akira likes to photograph birds at the zoo.",
"Akira was not born knowing how to identify different bird calls. She had to learn this skill."
] | 1 | Read the description of a trait.
Akira is good at identifying birds from their calls. | 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... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Jill thinks Mr. Hardin is a Luddite because he doesn't own a cell phone. | [
"the Bible",
"British history"
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Luddite is British history.
In the early nineteenth century, factories were replacing the jobs of craftsmen. Some of these craftsmen banded together to destroy the new machinery; those who did so were called Luddites.
The allusion Luddite means a person opposed to new technology. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
eat - everyday | [
"explode",
"escape"
] | 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 escape is between the guide words eat - everyday, it would be found on that page. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | closed choice | grade8 | 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 ... | |
Not supported with pagination yet | Which tennis ball has a lower temperature? | [
"the tennis ball with less thermal energy",
"the tennis ball with more thermal energy"
] | 0 | Two tennis balls 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 tennis balls are made of the same material and have the same mass. So, the tennis ball with less thermal energy has a lower temperature. |
Not supported with pagination yet | Which correctly shows the title of an article? | [
"\"Rules of Thumb for Choosing a baby Name\"",
"\"Rules of Thumb for Choosing a Baby Name\""
] | 1 | 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 words of, for, and a are not important, so they should not be capitalized.
The correct title is "Rules of Thumb for Choosing a Baby Name." | |
Not supported with pagination yet | Which object has the least thermal energy? | [
"a stick of butter at a temperature of 11°C",
"a stick of butter at a temperature of 6°C",
"a stick of butter at a temperature of 8°C"
] | 1 | The objects are identical except for their temperatures. | closed choice | grade4 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter slow down, the temperature goes down. The matter now has both ... | All three sticks of butter have the same mass but different temperatures. Since the 6°C stick of butter is the coldest, it has the least thermal energy. |
What is the capital of North Carolina? | [
"Raleigh",
"Louisville",
"Salt Lake City",
"Boston"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Not supported with pagination yet | Select the solid. | [
"paper clip",
"milk",
"rain"
] | 0 | closed choice | grade2 | natural science | physics | States of matter | Identify solids and liquids | Solid and liquid are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a shape of its own.
Some solids can be bent or broken easily. Others are hard to bend or break.
A glass cup is a solid. A sock is also a solid.
When matter is a li... | ||
What is the capital of California? | [
"Salem",
"Juneau",
"Sacramento",
"Phoenix"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Sacramento is the capital of California. | |||
Which i in row C? | [
"the park",
"the school",
"the police department",
"the grocery store"
] | 2 | closed choice | grade3 | social science | geography | Geography | Use a letter-number grid | A grid is made up of lines of squares. They are organized in rows and columns. A grid can help you use a map.
A row is a line of squares that goes from side to side. Rows are marked with letters.
A column is a line of squares that goes up and down. Columns are marked with numbers. | The police department is in row C. | ||
Not supported with pagination yet | Is this a sentence fragment?
Closed to visitors since the 1960s, the prehistoric cave paintings in Lascaux, France, are between fifteen thousand and seventeen thousand years old. | [
"no",
"yes"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | This is not a sentence fragment. It is a complete sentence because it expresses a complete thought.
Closed to visitors since the 1960 s, the prehistoric cave paintings in Lascaux, France, are between fifteen thousand and seventeen thousand years old. | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"best regards,\nLeah",
"Best regards,\nLeah"
] | 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. | |
Which of the following organisms is the omnivore in this food web? | [
"rough-legged hawk",
"bear sedge",
"Arctic fox"
] | 2 | 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 | grade6 | 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... | Omnivores are consumers that eat both producers and other consumers. So, an omnivore has arrows pointing to it from at least one producer and at least one consumer.
The Arctic fox has an arrow pointing to it from the bilberry, which is a producer. The Arctic fox also has an arrow pointing to it from the brown lemming, ... | |
Not supported with pagination yet | Select the vertebrate. | [
"comet moth",
"black howler"
] | 1 | Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | closed choice | grade3 | natural science | biology | Classification | Identify vertebrates and invertebrates | Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | A black howler is a mammal. Like other mammals, a black howler is a vertebrate. It has a backbone.
A comet moth is an insect. Like other insects, a comet moth is an invertebrate. It does not have a backbone. It has a hard outer cover. |
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each salmon",
"each salmon . . . the surroundings"
] | 0 | Ernest lit the charcoal in his grill to cook two identical salmon. He put one fish on the left half of the grill and one fish on the right half of the grill. This table shows how the temperature of each salmon changed over 6minutes. | 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 salmon increased, which means that the thermal energy of each salmon increased. So, thermal energy was transferred from the surroundings to each salmon. | |
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each refrigerator",
"each refrigerator . . . the surroundings"
] | 0 | Two identical refrigerators in a restaurant kitchen lost power. The door of one fridge was slightly open, and the door of the other fridge was closed. This table shows how the temperature of each refrigerator changed over 10minutes. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each refrigerator increased, which means that the thermal energy of each refrigerator increased. So, thermal energy was transferred from the surroundings to each refrigerator. | |
Which property matches this object? | [
"yellow",
"flexible"
] | 1 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
Yellow is a color.
This color is yellow. The metal paper clip is not yellow.
A flexible object can be folded or bent without breaking easily. The metal paper clip is flexible. | |
What is the capital of Hawaii? | [
"Dover",
"Honolulu",
"Hilo",
"Cheyenne"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Honolulu is the capital of Hawaii. | |||
Not supported with pagination yet | Complete the sentence so that it uses personification.
Displayed next to the other books with more eye-catching covers, this one seemed () by comparison. | [
"shy",
"ordinary"
] | 0 | closed choice | grade10 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the word shy. It describes this book as if it were a shy person. | |
Not supported with pagination yet | Using only these supplies, which question can Tristan investigate with an experiment? | [
"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 when the pie is cooked in a glass pan or in an aluminum pan?",
"Does a pie crust made with white flour burn more quickly than a pie crust mad... | 1 | Tristan 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 pi... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
What can Bryan and Manuel trade to each get what they want? | [
"Manuel can trade his almonds for Bryan's tomatoes.",
"Manuel can trade his broccoli for Bryan's oranges.",
"Bryan can trade his tomatoes for Manuel's sandwich.",
"Bryan can trade his tomatoes for Manuel's broccoli."
] | 3 | 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.
Bryan and Manuel open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Bryan wanted b... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Bryan wanted broccoli in his lunch and Manuel was hoping for tomatoes. Look at the labeled part of the images.
Bryan has tomatoes. Manuel has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want. | ||
Select the organism in the same genus as the Steller's sea eagle. | [
"Haliaeetus pelagicus",
"Lissotriton helveticus",
"Alopias pelagicus"
] | 0 | This organism is a Steller's sea eagle. Its scientific name is Haliaeetus pelagicus. | 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 Steller's sea eagle's scientific name is Haliaeetus pelagicus. The first word of its scientific name is Haliaeetus.
Alopias pelagicus and Haliaeetus pelagicus are not in the same genus.
These organisms are not in the same genus, but part of their scientific names is the same. Alopias pelagicus and Haliaeetus pelagicu... | |
Not supported with pagination yet | Which type of sentence is this?
Mark took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | [
"compound-complex",
"compound",
"simple",
"complex"
] | 2 | 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 simple. It is a single independent clause.
Mark took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Dhaka.
Dhaka is the capital of Bangladesh, a country in southern Asia. The humidity last April was high for the entire month.
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 | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
Dhaka is the capital of Bangladesh, a country in southern Asia. The humidity last April was high for the entire month.
The underlined part of the passage tells you about the humidity in Dhaka last April. This passage describes the atmosphere at a certain place and time. So, this passage desc... | |
Which ocean is highlighted? | [
"the Pacific Ocean",
"the Arctic Ocean",
"the Southern Ocean",
"the Atlantic Ocean"
] | 1 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Arctic Ocean. | ||
Which animal's mouth is also adapted for gnawing? | [
"raccoon",
"marmot"
] | 1 | s spend most of their life underground. They eat by biting off small pieces at a time, or gnawing. The mole rat's mouth is adapted for gnawing.
Figure: Damara mole rat. | 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 Damara mole rat.
The Damara mole rat has large front teeth. Its mouth is adapted for gnawing. The large front teeth can help the Damara mole rat break off pieces of food that it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The marmot has large front ... | |
Select the amphibian below. | [
"human",
"African bullfrog",
"loon",
"Banggai cardinalfish"
] | 1 | Amphibians have moist skin and begin their lives in water.
Amphibians are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A gray tree frog is an example of an amphibian. | 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 Banggai cardinalfish is a fish. It lives underwater. It has fins, not limbs.
Cardinalfish often live near coral reefs. They are nocturnal, which means that they are active mostly at night.
A loon is a bird. It has feathers, two wings, and a beak.
Loons usually live near lakes. They dive in the water to hunt for food.... | |
Is the following statement about our solar system true or false?
Earth is the largest planet that is made mainly of rock. | [
"true",
"false"
] | 0 | Use the data to answer the question below. | true-or false | grade6 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. | The table tells you that Mercury, Venus, Earth, and Mars are the planets made mainly of rock. Of these planets, Earth is the largest. So, Earth is the largest planet that is made mainly of rock. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Select the reptile below. | [
"western rattlesnake",
"goldfish"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A Chinese alligator is an example of a reptile. | closed choice | grade3 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A goldfish is a fish. It lives underwater. It has fins, not limbs.
Goldfish are popular as pets in many countries today. They were first kept as pets by people in ancient China.
A western rattlesnake is a reptile. It has scaly, waterproof skin.
Rattlesnakes have fangs they can use to inject venom into their prey. | |
What is the capital of Colorado? | [
"Denver",
"Boulder",
"Colorado Springs",
"Atlanta"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Which property do these two objects have in common? | [
"stretchy",
"hard"
] | 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 stretchy object gets longer when you pull on it. Neither of the objects are stretchy.
A hard object keeps its shape when you squeeze it. Both objects are hard.
The property that both objects have in common is hard. | |
Which fish's mouth is also adapted for tearing through meat? | [
"copperband butterflyfish",
"tiger moray"
] | 1 | Barracudas often hunt large fish for food. The 's mouth is adapted to tear through meat.
Figure: barracuda. | 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 barracuda.
The barracuda has a large mouth and sharp teeth. Its mouth is adapted for tearing through meat. The baracuda 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 sh... | |
Not supported with pagination yet | Which object has less thermal energy? | [
"a 200-gram glass of grape juice at a temperature of 20°C",
"a 200-gram glass of grape juice at a temperature of 10°C"
] | 1 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter slow down, the temperature goes down. The matter now has both ... | The two glasses of grape juice have the same mass but different temperatures. Since the 10°C glass of grape juice is colder than the 20°C glass of grape juice, it has less thermal energy. |
Which of the following could Steve's test show? | [
"how much athletes would sweat in the fabric",
"how long it would take the sample fabric to dry after it absorbed one drop of water",
"if the sample fabric would absorb one drop of water in less than one second"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
What is the capital of Utah? | [
"Sacramento",
"Salem",
"Salt Lake City",
"Provo"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Salt Lake City is the capital of Utah. |
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.