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Not supported with pagination yet | Which is the most flexible? | [
"cotton apron",
"plastic ball",
"glass jar"
] | 0 | 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... | Flexible is a property. A flexible material can be bent without breaking easily.
Look at each picture, one at a time. Imagine bending the material shown in each picture.
Of the choices, the cotton apron is the most flexible. If you fold cotton fabric, it will not break. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | 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: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Which of these states is farthest north? | [
"Oklahoma",
"Nebraska",
"Montana",
"Georgia"
] | 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 north arrow is pointing. Montana is farthest north. | ||
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 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 ... | |
Select the amphibian below. | [
"horned frog",
"toco toucan",
"ostrich",
"bald eagle"
] | 0 | 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 California toad 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 toco toucan is a bird. It has feathers, two wings, and a beak.
Toucans have large beaks. A toucan's beak can be half as long as its body.
A horned frog is an amphibian. It has moist skin and begins its life in water.
Frogs live near water or in damp places. Most frogs lay their eggs in water.
An ostrich is a bird. It... | |
What is the name of the colony shown? | [
"New York",
"New Jersey",
"West Virginia",
"Vermont"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New York.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
Select the organism in the same genus as the sand cat. | [
"Lynx lynx",
"Felis catus",
"Lynx rufus"
] | 1 | This organism is a sand cat. Its scientific name is Felis margarita. | closed choice | grade5 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A sand cat's scientific name is Felis margarita. The first word of its scientific name is Felis.
Lynx rufus is in the genus Lynx. The first word of its scientific name is Lynx. So, Lynx rufus and Felis margarita are not in the same genus.
Felis catus is in the genus Felis. The first word of its scientific name is Felis... | |
Not supported with pagination yet | According to Newton's third law, what other force must be happening? | [
"The suitcase is pulling on David.",
"The suitcase is pushing on David."
] | 0 | Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force.
Consider the following force:
David is pulling on a full suitcase. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Predict forces using Newton's third law | According to Newton's third law, for every force, there is an equal and opposite force. This means that if one object is applying a force on a second object, the second object must also be applying a force on the first object, but in the opposite direction.
For example, if your hand is pushing down on a table, the tabl... | David is pulling on the suitcase. So, Newton's third law tells you that the suitcase is pulling on David. |
What is the capital of New York? | [
"Buffalo",
"New York City",
"Albany",
"Carson City"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Albany is the capital of New York. | |||
What can Jill and Victoria trade to each get what they want? | [
"Jill can trade her tomatoes for Victoria's broccoli.",
"Jill can trade her tomatoes for Victoria's sandwich.",
"Victoria can trade her almonds for Jill's tomatoes.",
"Victoria can trade her broccoli for Jill's oranges."
] | 0 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Jill and Victoria open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Jill wanted b... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Jill wanted broccoli in her lunch and Victoria was hoping for tomatoes. Look at the labeled part of the images.
Jill has tomatoes. Victoria 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. | ||
Which of the following statements describess living in an independent city-state? | [
"My city rules itself and is not part of a larger country.",
"I live by myself in the wilderness.",
"All the decisions about my city are made by a faraway emperor.",
"I vote for a president that rules over many different cities."
] | 0 | Athens was one of the most powerful independent city-states in ancient Greece. Look at the definitions below. Then answer the question. | closed choice | grade6 | social science | world-history | Greece | Classical Athens: geography and society | Look at the definitions.
Putting the definitions together, an independent city-state is a self-ruling city with its own government. So, a city-state rules itself and is not part of a larger country.
The ancient Greeks called a city-state a polis, which was the ancient Greek word for city. Today, the root word "polis" i... | ||
Not supported with pagination yet | Which correctly shows the title of an article? | [
"Kind Hearts Are Healthier",
"\"Kind Hearts Are Healthier\""
] | 1 | closed choice | grade6 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, article, or short story should be in quotation marks.
"You Are My Sunshine" | An article should be in quotation marks.
The correct title is "Kind Hearts Are Healthier." | |
Not supported with pagination yet | What is the mass of a cherry pie? | [
"1 kilogram",
"1 gram"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of a cherry pie is 1 kilogram.
1 gram is too light. |
What is the capital of Minnesota? | [
"Saint Paul",
"Saint Louis",
"Helena",
"Minneapolis"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Saint Paul is the capital of Minnesota. | |||
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"a Monster in Paris",
"A Monster in Paris"
] | 1 | closed choice | grade5 | language science | capitalization | Capitalization | 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 in is not important, so it should not be capitalized.
The correct title is A Monster in Paris. | |
What is the capital of North Carolina? | [
"Jackson",
"Montgomery",
"Charlotte",
"Raleigh"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
What is the capital of Missouri? | [
"Louisville",
"Jefferson City",
"Columbus",
"Des Moines"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Jefferson City is the capital of Missouri. | |||
Not supported with pagination yet | What information supports the conclusion that Anne inherited this trait? | [
"Anne and her father both have dark hair.",
"Anne's parents have dark skin. They passed down this trait to Anne."
] | 1 | Read the description of a trait.
Anne has dark skin. | 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... | |
Not supported with pagination yet | What does this Works Cited entry indicate about the cited work?
Onishi, Kristine H., and Renée Baillargeon. "Do 15-Month-Old Infants Understand False Beliefs?" Science 308.5719 (2005): 255–258. Web. 15 Dec. 2012. | [
"It is a book.",
"It is a poem.",
"It is a journal article."
] | 2 | closed choice | grade11 | language science | reference-skills | Research skills | Understand a Works Cited entry (MLA 7th edition) | When writing research papers, you will often be asked to follow a particular style guide for your citations. One popular style guide is the Modern Language Association (MLA) Handbook.
Below are the basic formats for some common types of Works Cited entries. Consult the MLA Handbook for a complete list.
Books:
Format | ... | Look closely at the Works Cited entry:
Onishi, Kristine H., and Renée Baillargeon. "Do 15-Month-Old Infants Understand False Beliefs?" Science 308.5719 (2005): 255–258. Web. 15 Dec. 2012.
You can tell that the source is a journal article because of the entry's formatting. Journal articles always include the article tit... | |
Which country is highlighted? | [
"New Zealand",
"Fiji",
"Vanuatu",
"Solomon Islands"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Solomon Islands. | |||
Not supported with pagination yet | Which is more flexible? | [
"silk necktie",
"wood bat"
] | 0 | closed choice | grade3 | 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... | Flexible is a property. A flexible material can be bent without breaking easily.
Look at each picture, one at a time. Imagine bending the material shown in each picture.
Of the choices, the silk necktie is more flexible. If you fold silk fabric, it will not break. | |
Not supported with pagination yet | Complete the sentence.
an egg is fertilized, it can become a (). | [
"After . . . cone",
"After . . . seed",
"Before . . . cone",
"Before . . . seed"
] | 1 | 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... | Fertilized eggs grow into seeds. An egg cannot become a seed until after it is fertilized.
A seed can grow into a new plant, which can grow cones. But a fertilized egg does not become a cone. | |
Which property matches this object? | [
"fragile",
"colorful"
] | 1 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
A colorful object has one or more bright colors. The inflatable castle is colorful.
A fragile object will break into pieces if you drop it. The inflatable castle is not fragile. | |
Is a sidewalk a solid, a liquid, or a gas? | [
"a gas",
"a solid",
"a liquid"
] | 1 | closed choice | grade4 | natural science | physics | States of matter | Identify and sort solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | A sidewalk is a solid. A solid has a size and shape of its own.
A sidewalk has a size and shape of its own, even when you step on it. | ||
What is the capital of Washington? | [
"Phoenix",
"Seattle",
"Sacramento",
"Olympia"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Olympia is the capital of Washington. | |||
Not supported with pagination yet | Using only these supplies, which question can Frank investigate with an experiment? | [
"Do toy cars with plastic wheels go faster down the cardboard ramp than toy cars with metal wheels?",
"Do toy cars go faster down the ramp made of wood or the ramp made of cardboard?",
"Does a big toy car go down the wooden ramp faster than a small toy car?"
] | 1 | Frank and his sister are building ramps to race their toy cars down. Frank 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 ... | 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... | |
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... | |
Which month is the hottest on average in Rome? | [
"October and November",
"December, January, and February",
"July and August"
] | 2 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. 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 Rome, look at the graph.
Choice "Feb" is incorrect.
Choice "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Oct" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
Choice "Jan" is incorrect.
The average temperatures in July and August are around 23°C.... | |
Not supported with pagination yet | Which is a sentence fragment? | [
"My family has a rule everyone cleans up after dinner.",
"Hugged his children before going to work."
] | 1 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence, a fragment, or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb.
Knows the answer.
This is a sentence fragment. It is missing a subj... | Hugged his children before going to work is a sentence fragment. It is missing a subject. | |
What is the capital of Rhode Island? | [
"Providence",
"Newport",
"Richmond",
"Boston"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | |||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Mr. Floyd has a reputation as a Scrooge, so our club has stopped asking him for donations. | [
"the Bible",
"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 Scrooge is literature.
The novella A Christmas Carol, by Charles Dickens, tells the story of the penny-pinching and bitter Ebenezer Scrooge, who values money more than people.
The allusion Scrooge means a person who isn't generous. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | 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: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Not supported with pagination yet | What information supports the conclusion that Mackenzie acquired this trait? | [
"Mackenzie and her father play the cello together.",
"Mackenzie learned how to play the cello in music class.",
"Mackenzie knows how to polish her cello."
] | 1 | Read the description of a trait.
Mackenzie can play the cello. | 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 | What is the source of the allusion in the sentence below?
Denise told her friends that Cole was a typical Peter Pan type. | [
"literature",
"a song"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Peter Pan is literature.
In a J. M. Barrie novel, the character Peter Pan retreats to Neverland and refuses to grow up.
The allusion Peter Pan means a person who won't take on adult responsibilities. | |
Not supported with pagination yet | What information supports the conclusion that Dana acquired this trait? | [
"Dana's scar was caused by an accident. She cut her leg when she was climbing a tree.",
"Some scars fade more quickly than others."
] | 0 | Read the description of a trait.
Dana has a scar on her left leg. | 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? | [
"Asia",
"South America",
"Africa",
"Europe"
] | 2 | closed choice | grade5 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Africa. | ||
Which property do these four objects have in common? | [
"opaque",
"hard",
"slippery"
] | 0 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
An opaque object does not let light through. All four objects are opaque.
A slippery object is hard to hold onto or stand on. The ball of wet clay is slippery, but the rubber band is not.
A hard object does not change shape when pressed or squeezed. ... | |
What is the capital of Nebraska? | [
"Saint Paul",
"Pierre",
"Topeka",
"Lincoln"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Lincoln is the capital of Nebraska. | |||
Which of the following could Colleen and Amelia'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... | ||
Complete the sentence.
Grasshoppers can () to stay safe. | [
"jump and fly",
"get smaller",
"change colors"
] | 0 | Read the first part of the passage about grasshoppers.
Grasshoppers have many ways to stay safe. They are great jumpers. They can fly, too.
Grasshoppers use their back legs to jump into the air. Their back legs are big. So, grasshoppers can jump high and far. Then, they can fly away. | closed choice | grade1 | language science | reading-comprehension | Read-alone texts | Read passages about animals | The passage says that grasshoppers have many ways to stay safe. They can jump high and far. And they can fly away. This tells you they can jump and fly to stay safe. | ||
Not supported with pagination yet | Complete the statement.
Gold is (). | [
"an elementary substance",
"a compound"
] | 0 | Gold is a precious metal that is often used to make jewelry. The chemical formula for gold is Au. | 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 gold 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 gold contains one atomic symbol: Au. So, the ... |
Not supported with pagination yet | What does the allusion in this text suggest?
With the gutters clogged and water rising in the streets, Jennifer, who was watching the storm from her window, commented, "We're going to need an ark to get out of here." | [
"Jennifer plans to build a boat.",
"Jennifer thinks the storm will cause major flooding."
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Interpret the figure of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An allusion is a brief reference to something or someone well known, often from history or literature.
"I'd better get home before I turn into a pumpkin!" Lila remarked. | The text uses an allusion, a brief reference to someone or something well known.
The allusion to an ark suggests that Jennifer thinks the storm will cause major flooding. In the Bible, it rains for forty days and forty nights; Noah, his family, and animals of every species survive the great flood in an ark that he buil... | |
Not supported with pagination yet | How long is a potato? | [
"17 millimeters",
"17 kilometers",
"17 centimeters",
"17 meters"
] | 2 | 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 potato is 17 centimeters.
17 millimeters is too short. 17 meters and 17 kilometers are too long. |
What is the name of the colony shown? | [
"Vermont",
"New York",
"Indiana",
"Maryland"
] | 3 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Maryland. | |||
Which solution has a higher concentration of blue particles? | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | 2 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
Use the concentration formula to find the number of blue particles per milliliter.
... | |
Not supported with pagination yet | Which is a complete sentence? | [
"Over the summer, my cousin Monica visited many times.",
"Mom kisses Abby's cheek Abby smiles at Mom."
] | 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 ... | Over the summer, my cousin Monica visited many times is a complete sentence. The subject is my cousin Monica, and the verb is visited. | |
Not supported with pagination yet | Compare the motion of two speedboats. Which speedboat was moving at a lower speed? | [
"a speedboat that moved 640miles in 10hours",
"a speedboat that moved 435miles in 10hours"
] | 1 | closed choice | grade2 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the mile.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about two objects movi... | Look at the distance each speedboat moved and the time it took to move that distance.
One speedboat moved 435 miles in 10 hours.
The other speedboat moved 640 miles in 10 hours.
Notice that each speedboat spent the same amount of time moving. The speedboat that moved 435 miles moved a shorter distance in that time. So,... | |
Not supported with pagination yet | Which correctly shows the title of an article? | [
"\"The Love of My Life\"",
"\"the love of My Life\""
] | 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 of is not important, so it should not be capitalized.
The correct title is "The Love of My Life." | |
Which solution has a higher concentration of blue particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 0 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
Use the concentration formula to find the number of blue particles per milliliter.
... | |
What can Bryan and Noah trade to each get what they want? | [
"Bryan can trade his tomatoes for Noah's carrots.",
"Noah can trade his almonds for Bryan's tomatoes.",
"Bryan can trade his tomatoes for Noah's broccoli.",
"Noah can trade his broccoli for Bryan'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.
Bryan and Noah open their lunch boxes in the school cafeteria. Neither Bryan nor Noah got everything that they wanted. The table ... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Bryan wants broccoli. Noah 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. | ||
Not supported with pagination yet | Last year, 50,000 people lived in the city of Springtown. But since then, 8,000 people have moved away. What probably happened to the overall supply of houses for sale in Springtown? | [
"The supply probably went up.",
"The supply probably went down."
] | 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... | The population of Springtown fell by 8,000 people. Many of the people who have left are probably trying to sell their houses. Since more people are trying to sell their houses, the number of suppliers of houses for sale in Springtown has gone up. So, the supply of houses for sale probably went up, too. | |
Not supported with pagination yet | Which is the bumpiest? | [
"rock wall",
"gold ring",
"silk necktie"
] | 0 | 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... | Bumpy is a property. A bumpy material is covered in lumps and bumps. It is not flat or smooth.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the rock wall is the bumpiest. If you touch a rock wall, it will feel bumpy and lumpy. | |
Which solution has a higher concentration of blue particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 1 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
Use the concentration formula to find the number of blue particles per milliliter.
... | |
What is the expected ratio of offspring with pale orange cheeks to offspring with bright orange cheeks? Choose the most likely ratio. | [
"2:2",
"1:3",
"0:4",
"3:1",
"4:0"
] | 1 | In a group of cockatiels, some individuals have bright orange cheeks and others have pale orange cheeks. In this group, the gene for the cheek color trait has two alleles. The allele for pale orange cheeks (r) is recessive to the allele for bright orange cheeks (R).
This Punnett square shows a cross between two cockati... | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring with pale orange cheeks or bright orange cheeks, consider whether each phenotype is the dominant or recessive allele's version of the cheek color trait. The question tells you that the r allele, which is for pale orange cheeks, is recessive to the R ... | |
Not supported with pagination yet | Which tense does the sentence use?
With sun and water, the gourd will grow very large. | [
"past tense",
"present tense",
"future tense"
] | 2 | closed choice | grade4 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, grow. The verb tells you about something that is going to happen. | |
Select the mammal below. | [
"piranha",
"koala"
] | 1 | Mammals have hair or fur and feed their young milk. A giraffe is an example of a mammal. | closed choice | grade3 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A koala is a mammal. It has fur and feeds its young milk.
Koalas sleep for up to 20 hours a day!
A piranha is a fish. It lives underwater. It has fins, not limbs.
Piranhas have sharp teeth. Piranhas hunt in groups. A group of piranhas can eat a large animal. | |
Not supported with pagination yet | Complete the sentence.
Burning a piece of wood is a (). | [
"physical change",
"chemical 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... | Burning a piece of wood is a chemical change. When the wood burns, the type of matter in it changes. The wood turns black and gives off smoke. | |
Select the organism in the same species as the pickerel frog. | [
"Lithobates palustris",
"Atelopus zeteki",
"Bufo guttatus"
] | 0 | This organism is a pickerel frog. Its scientific name is Lithobates palustris. | closed choice | grade5 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A pickerel frog's scientific name is Lithobates palustris.
Atelopus zeteki does not have the same scientific name as a pickerel frog. So, Lithobates palustris and Atelopus zeteki are not in the same species.
Lithobates palustris has the same scientific name as a pickerel frog. So, these organisms are in the same specie... | |
In this experiment, which were part of an experimental group? | [
"the cups that got cardboard sleeves",
"the cups that did not get cardboard sleeves"
] | 0 | The passage below describes an experiment.
Justin drank coffee out of a paper cup. He remembered that his coffee shop had cardboard sleeves for their coffee cups. He wondered if using a sleeve would help keep the coffee warm.
Justin placed a cardboard sleeve on each of three paper cups. He left three other cups withou... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify control and experimental groups | Experiments have variables, or parts that change. You can design an experiment to investigate whether changing a variable between different groups has a specific outcome.
For example, imagine you want to find out whether adding fertilizer to soil affects the height of pea plants. You could investigate this question wit... | In this experiment, Justin investigated whether adding cardboard sleeves to coffee cups affects how quickly coffee cools. So, the cups that got cardboard sleeves were part of an experimental group.
There were no sleeves on the cups that did not get cardboard sleeves. So, they were not part of an experimental group. | |
Not supported with pagination yet | Based on this information, what is Bianca's genotype for the fur texture gene? | [
"FF",
"straight fur"
] | 0 | In a group of Syrian hamsters, some individuals have straight fur and others have wavy fur. In this group, the gene for the fur texture trait has two alleles. The allele F is for straight fur, and the allele f is for wavy fur.
Bianca, a Syrian hamster from this group, has straight fur. Bianca has two alleles for straig... | closed choice | grade8 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's genotype for a gene is its combination of alleles for that gene. Bianca has two alleles for straight fur (F). So, Bianca's genotype for the fur texture gene is FF. |
Not supported with pagination yet | Based on this information, what is this plant's phenotype for the fruit color trait? | [
"yellow fruit",
"red fruit"
] | 0 | In a group of tomato plants, some individuals have red fruit and others have yellow fruit. In this group, the gene for the fruit color trait has two alleles. The allele for red fruit (F) is dominant over the allele for yellow fruit (f).
A certain tomato plant from this group has the homozygous genotype ff for the fruit... | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | The tomato plant's genotype for the fruit color gene is ff. The tomato plant's genotype of ff has only f alleles. The f allele is for yellow fruit. So, the tomato plant's phenotype for the fruit color trait must be yellow fruit.
To check this answer, consider whether the tomato plant's alleles are dominant or recessive... |
Not supported with pagination yet | Which object has the least thermal energy? | [
"a crayon at a temperature of 21°C",
"a crayon at a temperature of 6°C",
"a crayon at a temperature of 11°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 crayons have the same mass but different temperatures. Since the 6°C crayon is the coldest, it has the least thermal energy. |
Not supported with pagination yet | Which object has the least thermal energy? | [
"a cookie at a temperature of 33°C",
"a cookie at a temperature of 23°C",
"a cookie at a temperature of 22°C"
] | 2 | 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 cookies have the same mass but different temperatures. Since the 22°C cookie is the coldest, it has the least thermal energy. |
Which of these states is farthest north? | [
"Mississippi",
"Indiana",
"Maryland",
"Montana"
] | 3 | 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 north arrow is pointing. Montana is farthest north. | ||
What is the capital of Connecticut? | [
"Trenton",
"New Haven",
"Hartford",
"Bridgeport"
] | 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 | Is a piece of gum a good or a service? | [
"a good",
"a service"
] | 0 | closed choice | grade3 | social science | economics | Basic economic principles | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether a piece of gum is a good or a service, ask these questions:
Is a piece of gum something you can touch? Yes.
Is a piece of gum a job you might pay someone else to do? No.
So, a piece of gum is a good. | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | 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: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, 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. Like poles repel. So, these magnets will repel each other. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
cedar - craft | [
"court",
"cannon"
] | 0 | 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 court is between the guide words cedar - craft, it would be found on that page. | |
Not supported with pagination yet | Based on this information, what is Figaro's phenotype for the ear type trait? | [
"curled ears",
"Ee"
] | 0 | In a group of American curl cats, some individuals have curled ears and others have straight ears. In this group, the gene for the ear type trait has two alleles. The allele E is for curled ears, and the allele e is for straight ears.
Figaro, an American curl cat from this group, has curled ears. Figaro has one allele ... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Figaro's observable version of the ear type trait is curled ears. So, Figaro's phenotype for the ear type trait is curled ears. |
Not supported with pagination yet | Select the one animal that has all of the bird traits listed above. | [
"Bengal tigers are one of the world's largest living cats. They have black, white, and orange fur. Female Bengal tigers feed their offspring milk. Male Bengal tigers can be almost twice as large as females!",
"Steller's sea eagles have large wings with white and brown feathers. They use their sharp beaks to eat f... | 1 | Birds are a group of animals with similar traits. The following traits can be used to identify birds:
They have feathers.
They have wings.
They have a beak.
They make eggs with shells. Observe the animals and read the descriptions. | closed choice | grade4 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Birds have the following traits:
They have feathers.
They have wings.
They have a beak.
They make eggs with shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A Steller's sea... |
Which property do these four objects have in common? | [
"sticky",
"fragile",
"opaque"
] | 1 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
An opaque object does not let light through. The ceramic plate is opaque, but the glass flask, the glass, and the icicle are not.
A fragile object will break into pieces if you drop it. All four objects are fragile.
A sticky object can attach or stic... | |
Not supported with pagination yet | Complete the statement.
Boron trichloride is (). | [
"a compound",
"an elementary substance"
] | 0 | Boron trichloride can be used to speed up certain types of chemical reactions. The chemical formula for boron trichloride is BCl3. | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Classify 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... | You can tell whether boron trichloride is an elementary substance or a compound by counting the number of symbols in its chemical formula. A symbol contains either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for boron trichloride is BCl3. This formula contains t... |
Not supported with pagination yet | Would you find the word boil on a dictionary page with the following guide words?
barge - birch | [
"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 boil is not between the guide words barge - birch, it would not be found on that page. | |
Which property matches this object? | [
"opaque",
"fragile"
] | 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.
An opaque object does not let light through. The fish bowl is not opaque.
A fragile object will break into pieces if you drop it. The fish bowl is fragile. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"According to Katie, Willie Mays hit 660 career home runs, although Joe DiMaggio had a higher batting average. She said that he is her favorite player.",
"According to Katie, Willie Mays hit 660 career home runs, although Joe DiMaggio had a higher batting average. She said that Mays is her favorite player."
] | 0 | closed choice | grade10 | 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 first answer choice contains a vague pronoun reference. The pronoun he could refer to Joe Di Maggio or Willie Mays.
The second answer choice shows a possible correction for the vague pronoun reference. He has been replaced with Mays.
According to Katie, Willie Mays hit 660 career home runs, although Joe DiMaggio ha... | |
What is the capital of North Carolina? | [
"Charlotte",
"Bismarck",
"Columbia",
"Raleigh"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Not supported with pagination yet | Which sentence states a fact? | [
"Building the Great Wall of China took too long.",
"It took hundreds of years to build the Great Wall of China."
] | 1 | closed choice | grade8 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved true by research or observation.
George Washington became president of the United States in 1789.
This statement is a fact. It can be proved by researching what year George Washington was inaugurated president.
An opinion is something that a person believes, thinks, or feels. An o... | The first sentence states a fact.
It took hundreds of years to build the Great Wall of China.
It can be proved by reading about the creation of the Great Wall.
The second sentence states an opinion.
Building the Great Wall of China took too long.
Too long shows what a person believes, thinks, or feels. Another person m... | |
Not supported with pagination yet | What does the euphemism in this text suggest?
Jessica is between jobs right now, so she's selling some of her old jewelry to help pay the bills. | [
"Jessica is working two different jobs.",
"Jessica is unemployed."
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off. | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The euphemism between jobs means that Jessica is unemployed. | |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her grammar and mechanics?
Nearly out of breath, the door at the top of the stairs swings open, and I find myself on the main observation deck on the eighty-sixth floor of the Empire State Building. What a view there is! Looking dow... | [
"by fixing sentence fragments",
"by correcting misplaced modifiers",
"by fixing run-on sentences"
] | 1 | closed choice | grade12 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | During peer review, you read and respond to a fellow student's writing. While there are many methods and strategies that you can use for reviewing a text, it is generally helpful to frame your suggestions in concrete and constructive ways and to consider the following areas for revision:
Ideas and development: Does the... | The writer could best improve his or her grammar and mechanics by correcting misplaced modifiers.
For example, the writer could revise the text so that Nearly out of breath modifies I instead of the door and Looking down from this impressive landmark modifies I instead of New York City.
Nearly out of breath, the door a... | |
Why do stick insects look like sticks? | [
"so they can hide on trees",
"so birds can find them more easily"
] | 0 | Read the passage about stick insects.
Stick insects are a tasty snack for birds and other animals. But these bugs have a tricky way to hide. They look like sticks! This makes them hard to spot in the trees where they live. They also don't move much.
Stick insects have another neat trick. If a bird grabs one by the leg,... | closed choice | grade2 | language science | reading-comprehension | Independent reading comprehension | Read and understand informational passages | Look at the passage. It tells you why stick insects look like sticks.
Stick insects are a tasty snack for birds and other animals. But these bugs have a tricky way to hide. They look like sticks! This makes them hard to spot in the trees where they live. They also don't move much. | ||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller 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 | 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,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The smaller the magnets, the smaller the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is smaller in Pair 1 than in Pair 2. So, the magnit... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"A lichen is composed of an alga and a fungus. They name lichens based on the species of fungus.",
"A lichen is composed of an alga and a fungus. Biologists name lichens based on the species of fungus."
] | 0 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun they is used without its antecedent.
The second answer choice shows a possible correction for the vague pronoun reference. They has been replaced with biologists.
A lichen is composed of an alga and a fungus. Biologists name lichens based on the sp... | |
Which of the following was an independent variable in this experiment? | [
"the distance the footballs traveled",
"the air pressure in the footballs"
] | 1 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Bryce noticed that some of the footballs his team used during practice were not fully inflated. He wondered whether fully inflated footballs would travel farther than footballs with a lower air pressure.
To fi... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify independent and dependent variables | Experiments have variables, or parts that change. You can design an experiment to find out how one variable affects another variable. For example, imagine that you want to find out if fertilizer affects the number of tomatoes a tomato plant grows. To answer this question, you decide to set up two equal groups of tomato... | ||
Not supported with pagination yet | Which is a compound sentence? | [
"The American Philatelic Society is a group for stamp collectors.",
"Canadian geese are flying south, so winter must be coming."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The second sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so.
Canadian geese are flying south, so winter must be coming. | |
Which is this organism's common name? | [
"tiger shark",
"Galeocerdo cuvier"
] | 0 | This organism is Galeocerdo cuvier. It is also called a tiger shark. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Galeocerdo cuvier is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Galeocerdo cuvier is the organism's scientific name. So, you know that tiger shark is the common name. | |
Not supported with pagination yet | Select the gas. | [
"rain",
"baseball cap",
"air inside a tire",
"ring"
] | 2 | closed choice | grade3 | natural science | physics | States of matter | Identify solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | A baseball cap is a solid. A solid has a size and shape of its own. If you put a baseball cap on your head, the baseball cap will still have a size and shape of its own.
The air inside a tire is a gas. A gas expands to fill a space. The air in a tire expands to fill all the space inside the tire. If air leaks out, it w... | |
Which property do these two objects have in common? | [
"scratchy",
"colorful"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A scratchy object is rough and itchy against your skin. Both objects are scratchy.
A colorful object has one or more bright colors. Neither of the objects are colorful.
The property that both objects have in common is scratchy. | |
Select the organism in the same genus as the European green toad. | [
"Hyla cinerea",
"Bufo bufo",
"Atelopus zeteki"
] | 1 | This organism is a European green toad. Its scientific name is Bufo viridis. | 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 European green toad's scientific name is Bufo viridis. The first word of its scientific name is Bufo.
Atelopus zeteki is in the genus Atelopus. The first word of its scientific name is Atelopus. So, Atelopus zeteki and Bufo viridis are not in the same genus.
Bufo bufo is in the genus Bufo. The first word of its scien... | |
Not supported with pagination yet | Is this a run-on sentence?
I was incredibly bored at the party; on the other hand, my younger sister had a fabulous time. | [
"yes",
"no"
] | 1 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify run-on sentences | 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 run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma s... | This is not a run-on sentence. It is not formed from two sentences that have been run together without appropriate punctuation.
I was incredibly bored at the party; on the other hand, my younger sister had a fabulous time. | |
What is the name of the colony shown? | [
"Delaware",
"Georgia",
"Maryland",
"New Hampshire"
] | 2 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Maryland. | |||
What is the capital of Vermont? | [
"Huntington",
"Burlington",
"Montpelier",
"Boston"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Montpelier is the capital of Vermont. | |||
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 1.",
"The magnitude of the magnetic force is smaller 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 shapes. | 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,... | Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magnitude of the magnetic force between them is smaller.
There is a greater distance between the magnets in Pair 2 than in Pair 1. So, the magnitude of the magnetic force is smaller in Pair 2 than in Pair 1. | |
Not supported with pagination yet | Suppose Kayla decides to make minestrone soup. Which result would be a cost? | [
"The minestrone soup will be tastier than the cream of mushroom soup would have been.",
"Kayla will spend more time making the minestrone soup than she would have spent making the cream of mushroom soup."
] | 1 | Kayla is deciding whether to make minestrone soup or cream of mushroom soup for dinner. She wants dinner to be as tasty as possible. But she is also hungry and wants to eat soon. | 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 Kayla wants or needs:
Kayla will spend more time making the minestrone soup than she would have spent making the cream of mushroom soup. |
Not supported with pagination yet | Which is a compound sentence? | [
"Do you want biscuits and jam for breakfast, or would you like some scrambled eggs?",
"According to many scholars, the 1798 publication of Lyrical Ballads by Samuel Taylor Coleridge and William Wordsworth began the romantic period in English literature."
] | 0 | 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 or.
Do you want biscuits and jam for breakfast, or would you like some scrambled eggs? | |
Not supported with pagination yet | Select the elementary substance. | [
"platinum (Pt)",
"sulfur dioxide (SO2)",
"hydrazine (N2H4)"
] | 0 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using chemical formulas | Every substance around you is made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds.
Every chemical element is represented by its own symbol. For s... | Look at the chemical formula for each substance, and count the number of symbols in the formula. Then, decide if the substance is an elementary substance. The chemical formula for sulfur dioxide contains two symbols: S for sulfur and O for oxygen. So, sulfur dioxide is made of two chemical elements bonded together. Sub... | |
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 and shapes. | 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,... | 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 1 than in Pair 2. So, the magnitud... | |
Not supported with pagination yet | Which is a compound sentence? | [
"Madison Chock and Gracie Gold were two American figure skaters in the Sochi 2014 Olympics.",
"On the ferry to Ellis Island, Eliana took a photograph, and now it's sitting in a frame on her dresser at home."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction and.
On the ferry to Ellis Island, Eliana took a photograph, and now it's sitting in a frame on her dresser at home. | |
Select the chemical formula for this molecule. | [
"HCl",
"HClN",
"HC",
"H2Cl"
] | 0 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Match chemical formulas to ball-and-stick models | Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical formulas ... | H is the symbol for hydrogen. Cl is the symbol for chlorine. This ball-and-stick model shows a molecule with one hydrogen atom and one chlorine atom.
The chemical formula will contain the symbols H and Cl. There is one hydrogen atom, so H will not have a subscript. There is one chlorine atom, so Cl will not have a subs... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
I know that I know nothing.
—attributed to Socrates | [
"euphemism",
"paradox"
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth.
I know that I know nothing at first appears to be contradictory: by admitting that you know nothing, you admit that you must know something. However, it contains some truth: it is possible to be... | |
What can Colin and Hanson trade to each get what they want? | [
"Hanson can trade his almonds for Colin's tomatoes.",
"Colin can trade his tomatoes for Hanson's carrots.",
"Colin can trade his tomatoes for Hanson's broccoli.",
"Hanson can trade his broccoli for Colin'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.
Colin and Hanson open their lunch boxes in the school cafeteria. Neither Colin nor Hanson got everything that they wanted. The ta... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Colin wants broccoli. Hanson 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. |
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.