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Not supported with pagination yet | Which would stretch more? | [
"wool sweater",
"ice rink"
] | 0 | closed choice | grade2 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. | Stretchy is a property. A stretchy material gets longer when you pull on it.
Look at each picture, one at a time. Imagine pulling on the material shown in each picture.
Of the choices, the wool sweater would stretch more. If you pull on the sleeve of a wool sweater, it will get longer. | |
Not supported with pagination yet | What kind of sentence is this?
Who started the rumor about the cafeteria serving cotton candy and ice cream for lunch? | [
"imperative",
"exclamatory",
"interrogative"
] | 2 | closed choice | grade6 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement, and it always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An interrogative sentence is a question, and it always ends with a question mark.
Do you have any plans for the upcoming... | The sentence asks something, and it ends with a question mark. It is an interrogative sentence. | |
Not supported with pagination yet | Which organ provides a barrier against contaminants found in the environment? | [
"skin",
"stomach",
"brain",
"muscles"
] | 0 | closed choice | grade5 | natural science | biology | Animals | Human organs and their functions | |||
Not supported with pagination yet | How long is a paper clip? | [
"34 millimeters",
"34 kilometers",
"34 meters"
] | 0 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric 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 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 paper clip is 34 millimeters.
34 meters and 34 kilometers are both too long. |
Not supported with pagination yet | Which figure of speech is used in this text?
Miguel returned to the parking lot to find his car somewhat destroyed. Apparently someone had crashed into it while he was working and had broken the entire front windshield. | [
"oxymoron",
"hyperbole"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Somewhat destroyed is a contradiction, because somewhat means partially or moderately, and destroyed implies totally wrecked. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | 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 south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Not supported with pagination yet | Which correctly shows the title of an article? | [
"\"Tips for Getting In\"",
"Tips for Getting In"
] | 0 | 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 "Tips for Getting In." | |
Not supported with pagination yet | What information supports the conclusion that Kimi acquired this trait? | [
"Kimi knits sweaters using cotton, wool, and other types of yarn.",
"Kimi learned how to knit in an after school program."
] | 1 | Read the description of a trait.
Kimi knows how to knit sweaters. | closed choice | grade3 | natural science | biology | Heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | What information supports the conclusion that Sebastian acquired this trait? | [
"Sebastian's friend taught him how to fly a kite.",
"Sebastian's neighbor taught him how to repair a kite.",
"Sebastian likes to fly a kite with his younger brother."
] | 0 | Read the description of a trait.
Sebastian knows how to fly a kite. | 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.... | |
Which i in row A? | [
"the fast-food restaurant",
"the theater",
"the pond",
"the fire department"
] | 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 pond is in row A. | ||
Not supported with pagination yet | Which glas of apple juice has more thermal energy? | [
"the colder glass of apple juice",
"the hotter glass of apple juice"
] | 1 | Two 250-gram glasses of apple juice are identical except for their temperatures. | closed choice | grade5 | natural science | physics | Heat and thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two glasses of apple juice are made of the same material and have the same mass. So, the hotter glass of apple juice has more thermal energy. |
What is the name of the colony shown? | [
"North Carolina",
"Pennsylvania",
"Connecticut",
"Alabama"
] | 0 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is North Carolina. | |||
Not supported with pagination yet | Which sentence states a fact? | [
"The city of Dubrovnik, Croatia, located nearly 250 miles from the capital city of Zagreb, is better to visit during the summer festival season.",
"The city of Dubrovnik, Croatia, once had the third-largest navy in the Mediterranean."
] | 1 | closed choice | grade12 | language science | writing-strategies | Developing and supporting arguments | Distinguish facts from opinions | Statements of fact make claims that are based on research, observation, or experimentation. Facts can be proved with evidence.
Napoleon Bonaparte was shorter than King Louis XVI.
This statement is a fact. The statement can be verified by researching and comparing the height of each man.
Statements of opinion make claim... | The first sentence states a fact. It can be verified by looking up the history of the largest naval forces in the Mediterranean.
The city of Dubrovnik, Croatia, once had the third-largest navy in the Mediterranean.
The second sentence states an opinion. Better indicates a personal judgment.
The city of Dubrovnik, Croat... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
appetite - asked | [
"arch",
"advise"
] | 0 | closed choice | 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 arch is between the guide words appetite - asked, it would be found on that page. | |
Not supported with pagination yet | Complete the statement.
Oxygen is (). | [
"a compound",
"an elementary substance"
] | 1 | Billions of pounds of oxygen are produced in factories each year. Over half of this oxygen is used to help produce steel. The chemical formula for oxygen is O2. | closed choice | grade8 | 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 oxygen 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 oxygen, O2, contains one atomic symbol: O. ... |
Which statement describes the Taklamakan Desert ecosystem? | [
"It has warm summers and mild winters.",
"It has dry, thin soil."
] | 1 | 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 statements describe the Taklamakan Desert ecosystem: a small amount of rain or snow, dry, thin soil, and long, cold winters. It has dry, thin soil. It... | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Seattle, Washington, has over 200 cloudy days every year. | [
"weather",
"climate"
] | 1 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Seattle, Washington, has over 200 cloudy days every year.
This passage tells you about the usual pattern of clouds in Seattle. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Which animal is also adapted for flight? | [
"Cape vulture",
"quokka"
] | 0 | Great blue herons fly long distances each year to find food. They have wings instead of arms. Herons are adapted for flight.
Figure: great blue heron. | 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.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the great blue heron.
The great blue heron has large, powerful wings. It is adapted for flight. Long, powerful wings help the great blue heron travel long distances by air.
Now look at each animal. Figure out which animal has a similar adaptation.
The Cape vulture has large, powerful wings. It is... | |
Complete the statement.
Hydrogen chloride is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents a molecule of hydrogen chloride. Hydrogen chloride is part of the liquid in your stomach that helps digest food. | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | All substances are made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds.
Every chemical element is represented by its own symbol. For some element... | Count the number of chemical elements represented in the model. Then, decide if hydrogen chloride is an elementary substance or a compound.
In this model, each ball is labeled with H for hydrogen or Cl for chlorine. So, the model shows you that hydrogen chloride is made of two chemical elements bonded together.
Substan... | |
What is the capital of Washington? | [
"Olympia",
"Huntington",
"Seattle",
"Laramie"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Olympia is the capital of Washington. | |||
Not supported with pagination yet | Which correctly shows the title of an article? | [
"\"Medicine's Search for Meaning\"",
"Medicine's Search for Meaning"
] | 0 | closed choice | grade9 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, article, or short story should be in quotation marks.
"You Are My Sunshine" | An article should be in quotation marks.
The correct title is "Medicine's Search for Meaning." | |
Not supported with pagination yet | Which figure of speech is used in this text?
The hum of the computer concerned Vijay. Was the problem with the power supply or the hard drive? | [
"onomatopoeia",
"metaphor"
] | 0 | closed choice | grade6 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses onomatopoeia, a word that expresses a sound.
Hum represents the sound the computer was making. | |
Not supported with pagination yet | Which word does not rhyme? | [
"hard",
"third",
"bird"
] | 0 | closed choice | grade2 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the same sound.
The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings.
The words tip and meet don't rhyme. They end with different sounds. | The words bird and third rhyme. They both end with the ird sound.
The word hard does not rhyme. It ends with a different sound. | |
Not supported with pagination yet | Select the animal that has a backbone. | [
"California newt",
"monarch butterfly"
] | 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 monarch butterfly is an insect. Like other insects, a monarch butterfly does not have a backbone. It has a hard outer cover.
A California newt is an amphibian. Like other amphibians, a California newt has a backbone. |
Not supported with pagination yet | Which figure of speech is used in this text?
People the world over have always been more impressed by the power of our example than by the example of our power.
—President Bill Clinton, speech at the 2008 Democratic National Convention | [
"apostrophe",
"chiasmus"
] | 1 | closed choice | grade12 | 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 chiasmus, an expression in which the second half parallels the first but reverses the order of words.
The second half of the sentence reverses the order of the words power and example relative to the first half. | |
Not supported with pagination yet | What information supports the conclusion that Vicky inherited this trait? | [
"Both of Vicky's biological parents have naturally black hair.",
"Some people use a hair dryer to straighten their hair. But Vicky and her brothers have naturally straight hair.",
"When she was younger, Vicky wore ribbons in her naturally black hair."
] | 0 | Read the description of a trait.
Vicky has naturally black hair. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | How long is a road from one end of a city to the other? | [
"6 meters",
"6 kilometers"
] | 1 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose metric 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.
Imagine being told that a pencil is 16 long. You might be thinking, 16 what? Is the pencil 16 centimeters long? 16 meters? 16 kilometers?
The number 16 on its own does not give you much informa... | The better estimate for the length of a road from one end of a city to the other is 6 kilometers.
6 meters is too short. |
What is the probability that a pea plant produced by this cross will have round peas? | [
"4/4",
"1/4",
"2/4",
"0/4",
"3/4"
] | 2 | In a group of pea plants, some individuals have round peas and others have wrinkled peas. In this group, the gene for the pea shape trait has two alleles. The allele for wrinkled peas (e) is recessive to the allele for round peas (E).
This Punnett square shows a cross between two pea plants. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities 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... | ||
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each greenhouse",
"each greenhouse . . . the surroundings"
] | 0 | Two identical greenhouses were next to each other. There were solar panels on the roof of one greenhouse but not on the roof of the other greenhouse. This table shows how the temperature of each greenhouse changed over 2hours. | 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 greenhouse increased, which means that the thermal energy of each greenhouse increased. So, thermal energy was transferred from the surroundings to each greenhouse. | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
Every Sunday, that popular farmers' market is like a zoo. | [
"metaphor",
"simile"
] | 1 | closed choice | grade4 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | Every Sunday, that popular farmers' market is like a zoo.
The words farmers' market and zoo are compared using the word like. So, the sentence uses a simile. | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 0 | 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. | |
Is magnetite a mineral or a rock? | [
"mineral",
"rock"
] | 0 | Magnetite has the following properties:
fixed crystal structure
not made by organisms
metallic luster
naturally occurring
pure substance
solid | closed choice | grade8 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Magnetite has all the properties of a mineral. So, magnetite is a mineral. | |
What is the expected ratio of offspring that have myotonia congenita to offspring that do not have myotonia congenita? Choose the most likely ratio. | [
"3:1",
"4:0",
"2:2",
"0:4",
"1:3"
] | 2 | This passage describes the myotonia congenita trait in goats:
Myotonia congenita is a condition that causes temporary muscle stiffness. When goats with myotonia congenita attempt to run from a resting position, their leg muscles often stiffen, causing them to fall over. Because of this behavior, these goats are referre... | 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 that do or do not have myotonia congenita, consider whether each phenotype is the dominant or recessive allele's version of the myotonia congenita trait. The question tells you that the m allele, which is for not having myotonia congenita, is recessi... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"your friend,\nMarcy",
"Your friend,\nMarcy"
] | 1 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Select the organism in the same genus as the bobcat. | [
"Macropus rufus",
"Ardea purpurea",
"Lynx pardinus"
] | 2 | This organism is a bobcat. Its scientific name is Lynx rufus. | 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 bobcat's scientific name is Lynx rufus. The first word of its scientific name is Lynx.
Macropus rufus and Lynx rufus are not in the same genus.
These organisms are not in the same genus, but part of their scientific names is the same. Macropus rufus and Lynx rufus have the same species name within their genus, rufus.... | |
Not supported with pagination yet | Which would stretch more? | [
"glass marbles",
"rubber gloves"
] | 1 | closed choice | grade2 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. | Stretchy is a property. A stretchy material gets longer when you pull on it.
Look at each picture, one at a time. Imagine pulling on the material shown in each picture.
Of the choices, the rubber gloves would stretch more. If you pull the fingers of a rubber glove, they will get longer. | |
Not supported with pagination yet | What information supports the conclusion that Jennifer acquired this trait? | [
"Both Jennifer and her father grow sunflowers.",
"Last summer, Jennifer's neighbor showed her how to grow sunflowers.",
"Jennifer likes to visit sunflower fields."
] | 1 | Read the description of a trait.
Jennifer knows how to grow sunflowers. | 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 | Which object has the most thermal energy? | [
"a blueberry muffin at a temperature of 94°F",
"a blueberry muffin at a temperature of 99°F",
"a blueberry muffin at a temperature of 103°F"
] | 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 move faster, the temperature goes up. The matter now has both ... | All three blueberry muffins have the same mass but different temperatures. Since the 103°F muffin is the hottest, it has the most thermal energy. |
Not supported with pagination yet | What is the volume of a bathtub? | [
"60 fluid ounces",
"60 gallons",
"60 cups"
] | 1 | Select the best estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose customary units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using customary units, volume may be written in units of fluid ounces, cups,... | The best estimate for the volume of a bathtub is 60 gallons.
60 fluid ounces and 60 cups are both too little. |
Not supported with pagination yet | What does the verbal irony in this text suggest?
"This salsa could use a little more spice," Javier said as he gulped down water and wiped tears from his eyes. | [
"The salsa was too spicy.",
"The salsa triggered Javier's allergies."
] | 0 | closed choice | grade8 | 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.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
Could use a little more spice ironically suggests that the salsa was too spicy. Javier gulped down water and wiped tears from his eyes, indications that the salsa was indeed too spicy. | |
Which country is highlighted? | [
"the Marshall Islands",
"Papua New Guinea",
"Vanuatu",
"Solomon Islands"
] | 3 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Solomon Islands. | |||
Which of these cities is marked on the map? | [
"Washington, D.C.",
"Pittsburgh",
"Boston",
"New York City"
] | 3 | closed choice | grade4 | social science | geography | Cities | Cities of the Northeast | The city is New York City, New York. Pittsburgh, Boston, and Washington, D.C., are marked with gray circles on the map below. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
The Boston Red Sox failed to win the World Series for eighty-six years after they traded Babe Ruth to the New York Yankees. Fans believed this to be the "Curse of the Bambino," or punishment for selling "The Bambino" to another team. | [
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences",
"false dichotomy: an argument that presents only two choices when more options exist",
"false causation: the assumption that because two things happened together, one caused the other"
] | 2 | closed choice | grade11 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that trading Babe Ruth to the Yankees led to the Red Sox's losing streak. However, that's not necessarily true. For instance, the team might have just had some bad luck. This illustrates a type of logical fallacy known as false causation. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Right after Edgar moved into the apartment, our washing machine broke. He'd better tell us how he broke it. | [
"ad hominem: a personal attack against one's opponent",
"false causation: the assumption that because two things happened together, one caused the other"
] | 1 | closed choice | grade8 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Edgar is responsible for the broken washing machine. However, the fact that the machine stopped working soon after Edgar moved in doesn't necessarily mean that he caused the machine to break. This illustrates a type of logical fallacy known as false causation. | |
Not supported with pagination yet | Which figure of speech is used in this text?
The archaeologists believe that the bones they found are about fourteen thousand years old, but we won't have an exact estimate until the laboratory tests are complete. | [
"euphemism",
"oxymoron"
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Exact estimate is a contradiction, because an estimate is an inexact or tentative measurement. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"neither; the samples have the same temperature",
"sample B",
"sample A"
] | 2 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade7 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample A has more mass than each particle in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
Because the particles in sample A have the higher average kinetic energy, sample A mus... | |
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.
Both poles of each magnet line up with both poles of the other magnet. The north pole of each 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 | What information supports the conclusion that Eve inherited this trait? | [
"Eve's biological mother often wears her straight hair in a ponytail.",
"Eve's neighbor also has straight hair.",
"Eve's biological parents have red hair. Eve also has red hair."
] | 0 | Read the description of a trait.
Eve has straight hair. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | Complete the sentence.
Folding a piece of paper is a (). | [
"physical change",
"chemical change"
] | 0 | 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... | Folding a piece of paper is a physical change. The paper gets a different shape. But it is still made of the same type of matter. | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
The blanket of snow () the cozy little cottage. | [
"completely covered",
"wrapped its arms around"
] | 1 | closed choice | grade8 | 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 phrase wrapped its arms around. It describes the snow as if it were a person offering a hug. | |
Identify the question that Grayson's experiment can best answer. | [
"Does the type of flour used in the muffins affect the number of muffins that turn brown after 30 minutes in the oven?",
"Do muffins made with white flour have larger volumes than muffins made with whole wheat flour?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Grayson made six batches of muffins over the course of one day. He used whole wheat flour in three of the batches and white flour in the other three batches. He divided the batter into muffin tins, using two ounces of b... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | Based on this information, what is Shiloh's phenotype for the fur length trait? | [
"short fur",
"long fur"
] | 1 | In a group of dogs, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for long fur (f) is recessive to the allele for short fur (F).
Shiloh is a dog from this group. Shiloh has the homozygous genotype ff for the fur length gene. | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | Shiloh's genotype for the fur length gene is ff. Shiloh's genotype of ff has only f alleles. The f allele is for long fur. So, Shiloh's phenotype for the fur length trait must be long fur.
To check this answer, consider whether Shiloh's alleles are dominant or recessive. The allele for long fur (f) is recessive to the ... |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magnitude of the magnetic force between them is greater.
There is a smaller distance between the magnets in Pair 2 than in Pair 1. So, the magnitude of the magnetic force is greater in Pair 2 than in Pair 1. | |
Not supported with pagination yet | Which tense does the sentence use?
The painter will blend blue and yellow together. | [
"present tense",
"future tense",
"past tense"
] | 1 | closed choice | grade5 | 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, blend. The verb tells you about something that is going to happen. | |
Not supported with pagination yet | Based on this information, what is Thor's genotype for the fur color gene? | [
"orange fur",
"FF"
] | 1 | In a group of Bengal tigers, some individuals have orange fur and others have white fur. In this group, the gene for the fur color trait has two alleles. The allele F is for orange fur, and the allele f is for white fur.
Thor, a Bengal tiger from this group, has orange fur. Thor has two alleles for orange fur. | 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 genotype for a gene is its combination of alleles for that gene. Thor has two alleles for orange fur (F). So, Thor's genotype for the fur color gene is FF. |
What is the capital of Nevada? | [
"Reno",
"Carson City",
"Baton Rouge",
"Jefferson City"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | |||
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | 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 figure of speech is used in this text?
We find ourselves rich in goods, but ragged in spirit.
—President Richard Nixon, inaugural address | [
"antithesis",
"euphemism"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure 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.
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 antithesis, the contrasting of opposing ideas within a parallel grammatical structure.
Nixon contrasts two aspects of the American people, rich in goods and ragged in spirit. | |
Not supported with pagination yet | Would you find the word stuff on a dictionary page with the following guide words?
should - sly | [
"yes",
"no"
] | 1 | yes or no | grade4 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since stuff is not between the guide words should - sly, it would not be found on that page. | |
Not supported with pagination yet | How long is a limousine? | [
"7 yards",
"7 inches",
"7 feet"
] | 0 | Select the best estimate. | closed choice | grade5 | 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 limousine is 7 yards.
7 inches and 7 feet are both too short. |
Which animal's mouth is also adapted to tear through meat? | [
"nutria",
"Eurasian lynx"
] | 1 | Cheetahs are carnivores, or meat eaters. They eat large mammals like antelope. The 's mouth is adapted to tear through meat.
Figure: cheetah. | 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 cheetah.
The cheetah has a large mouth and sharp teeth. Its mouth is adapted to tear through meat. The cheetah uses its large mouth to grab its prey. It uses its sharp teeth to cut up the meat of the prey into pieces it can swallow.
Now look at each animal. Figure out which animal has a simil... | |
What is the name of the colony shown? | [
"Delaware",
"Illinois",
"Maryland",
"New Jersey"
] | 2 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Maryland. | |||
Not supported with pagination yet | What kind of sentence is this?
This cool breeze feels great on such a hot day. | [
"interrogative",
"declarative"
] | 1 | closed choice | grade4 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells about something, and it ends with a period. It is a declarative sentence. | |
Which statement describes the Kaeng Krachan National Park ecosystem? | [
"It has many different types of organisms.",
"It has mostly small plants."
] | 0 | Figure: Kaeng Krachan National Park.
Kaeng Krachan National Park is a tropical rain forest ecosystem in western Thailand. It is Thailand's largest national park and has many animals, including elephants. | closed choice | grade5 | 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 tropical rain forest is a type of ecosystem. Tropical rain forests have the following features: year-round rain and warm temperatures, soil that is poor in nutrients, and many different types of organisms. So, the following statements describe the Kaeng Krachan National Park ecosystem: year-round rain and warm temper... | |
Which country is highlighted? | [
"Solomon Islands",
"Nauru",
"Vanuatu",
"Fiji"
] | 2 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Vanuatu.
Does Vanuatu have any territorial disputes?
Vanuatu claims to own Matthew and Hunter Islands, which are disputed islands. In other words, multiple countries or groups claim that the islands rightfully belong to them.
France has controlled the islands since 1929. But shortly after gaining indepe... | |||
What is the capital of Wyoming? | [
"Cheyenne",
"Boston",
"Laramie",
"Olympia"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Cheyenne is the capital of Wyoming. | |||
Not supported with pagination yet | Would you find the word noise on a dictionary page with the following guide words?
neither - nurse | [
"no",
"yes"
] | 1 | yes or no | grade4 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since noise is between the guide words neither - nurse, 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 smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | 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 | grade7 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Which rhetorical appeal is primarily used in this ad? | [
"pathos (emotion)",
"ethos (character)",
"logos (reason)"
] | 1 | closed choice | grade12 | language science | writing-strategies | Persuasive strategies | Identify appeals to ethos, pathos, and logos in advertisements | The purpose of an advertisement is to persuade people to do something. To accomplish this purpose, advertisements use three types of persuasive strategies, or appeals.
Appeals to ethos, or character, show the writer or speaker as trustworthy, authoritative, or sharing important values with the audience. An ad that appe... | The ad appeals to ethos, or character, by referencing an endorsement from a respected organization. | ||
Select the organism in the same genus as the fire clownfish. | [
"Amphiprion frenatus",
"Halichoeres hortulanus",
"Alopias pelagicus"
] | 0 | This organism is a fire clownfish. Its scientific name is Amphiprion melanopus. | 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 fire clownfish's scientific name is Amphiprion melanopus. The first word of its scientific name is Amphiprion.
Alopias pelagicus is in the genus Alopias. The first word of its scientific name is Alopias. So, Alopias pelagicus and Amphiprion melanopus are not in the same genus.
Amphiprion frenatus is in the genus Amph... | |
What evidence of a drought does this picture show? | [
"The ground is dry and cracked.",
"It is about to start raining."
] | 0 | This picture was taken during a drought. A drought happens when an area gets less rain or snow than usual. | closed choice | grade2 | natural science | earth-science | Earth events | Find evidence of changes to Earth's surface | Evidence is information that tells you something happened.
How do you look for evidence of a change to Earth's surface?
There are many ways to find evidence of a change to Earth's surface. One way is to look at a picture that was taken after the change.
Here are some examples of what the evidence for different changes ... | ||
Not supported with pagination yet | Which logical fallacy is used in the text?
Quinoa is a delicious, plant-based source of protein because it tastes so darn good. | [
"circular reasoning: an argument that supports a claim with the claim itself",
"ad hominem: a personal attack against one's opponent"
] | 0 | closed choice | grade6 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that quinoa is delicious because it tastes good. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning. | |
Not supported with pagination yet | Would you find the word rinse on a dictionary page with the following guide words?
room - rug | [
"yes",
"no"
] | 1 | yes or no | grade8 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since rinse is not between the guide words room - rug, it would not be found on that page. | |
Based on the time line, which event happens after James Marshall discovers gold and before gold becomes harder to find? | [
"Many people move to California.",
"Silver is discovered in Nevada."
] | 0 | This time line shows important events during the California Gold Rush. | closed choice | grade5 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | A time line shows the order of events by placing them along a line. This time line shows important events during the California Gold Rush.
Look at how the events are ordered on the time line. Events that happened earlier are shown to the left. Events that happened later are shown to the right. Many people move to Calif... | |
Which of these states is farthest south? | [
"Michigan",
"Utah",
"Rhode Island",
"North Dakota"
] | 1 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the south arrow is pointing. Utah is farthest south. | ||
What is the name of the colony shown? | [
"New York",
"Delaware",
"South Carolina",
"Maryland"
] | 3 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Maryland. | |||
Not supported with pagination yet | Which tense does the sentence use?
The hospital stayed open all day and night. | [
"present tense",
"future tense",
"past tense"
] | 2 | closed choice | grade3 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in past tense. You can tell because it uses a past-tense verb, stayed. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
Lying in a pile on the ground, the dirty, tattered coat looked (). | [
"wrinkled",
"depressed"
] | 1 | closed choice | grade8 | 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 depressed. It describes the coat as if it were a sad, worn-out person. | |
Not supported with pagination yet | What is the mass of a floor lamp? | [
"4 kilograms",
"4 grams"
] | 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 floor lamp is 4 kilograms.
4 grams is too light. |
Not supported with pagination yet | Select the one animal that has all of the marsupial traits listed above. | [
"Echidnas are covered in fur and spines. Their spines help protect them from predators. When an echidna is scared, it curls up into a ball! Echidnas lay eggs and feed their offspring milk.",
"Young gray kangaroos are called joeys. Female gray kangaroos carry their joeys in their pouches after they are born. Gray ... | 1 | Marsupials are a group of animals with similar traits. The following traits can be used to identify marsupials:
They have offspring that lives in the mother's pouch after birth.
They have fur or hair. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify animals | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Marsupials have the following traits:
They have offspring that lives in the mother's pouch after birth.
They have fur or hair.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
An e... |
Not supported with pagination yet | Based on this information, what is Admiral's phenotype for the eye color trait? | [
"black eyes",
"red eyes"
] | 1 | In a group of koi fish, some individuals have red eyes and others have black eyes. In this group, the gene for the eye color trait has two alleles. The allele for black eyes (e) is recessive to the allele for red eyes (E).
Admiral is a koi fish from this group. Admiral has the heterozygous genotype Ee for the eye color... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine Admiral's phenotype for the eye color trait. First, consider the alleles in Admiral's genotype for the eye color gene. Then, decide whether these alleles are dominant or recessive.
The allele for black eyes (e) is recessive to the allele for red eyes (E). This means E is a dominant allele, and e i... |
Which statement describes the Serengeti National Park ecosystem? | [
"It has soil that is poor in nutrients.",
"It has soil that is rich in nutrients."
] | 0 | Figure: Serengeti National Park.
Serengeti National Park is a savanna grassland ecosystem in Tanzania, a country in eastern Africa. Many types of animals migrate through the park each year. | closed choice | grade6 | 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 savanna grassland is a type of ecosystem. Savanna grasslands have the following features: warm summers and warm winters, a rainy season and a dry season, and soil that is poor in nutrients. So, the following statements describe the Serengeti National Park ecosystem: warm summers and warm winters, a rainy season and a... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your Friend,\nGrayson",
"Your friend,\nGrayson"
] | 1 | closed choice | grade4 | 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 statement best describes the average monthly precipitation in New Orleans? | [
"The wettest months of the year are June, July, and August.",
"October is the wettest month.",
"June, July, and August are the driest months of the year."
] | 0 | 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. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in New Orleans, look at the graph.
Choice "Jun" is incorrect.
Choice "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Oct" is incorrect.
Choice "October is the wettest month." is incorrect.
Every other month has a higher average precipitation than October. So, October ... | |
What is the capital of Hawaii? | [
"Salt Lake City",
"Phoenix",
"Helena",
"Honolulu"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Honolulu is the capital of Hawaii. | |||
Not supported with pagination yet | How long is a garden snail? | [
"43 kilometers",
"43 millimeters",
"43 centimeters",
"43 meters"
] | 1 | Select the best estimate. | closed choice | grade7 | 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 garden snail is 43 millimeters.
43 centimeters, 43 meters, and 43 kilometers are all too long. |
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each vial",
"each vial . . . the surroundings"
] | 0 | Scientists in a laboratory were working with insulin, a protein often used to treat diabetes. They left two identical vials of insulin in different places. This table shows how the temperature of each vial changed over 15minutes. | 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 vial increased, which means that the thermal energy of each vial increased. So, thermal energy was transferred from the surroundings to each vial. | |
Not supported with pagination yet | What information supports the conclusion that Jared inherited this trait? | [
"Jared's mother cuts his hair every month.",
"Jared's parents have blond hair. They passed down this trait to Jared."
] | 1 | Read the description of a trait.
Jared has blond hair. | closed choice | grade3 | natural science | biology | Heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | Read the following text from a student essay. How can the writer best improve his or her grammar and mechanics?
When I'm asked to name my favorite teacher, I immediately think of Mr. Sweeney. In fifth grade, Mr. Sweeney taught us all about architecture he had the class start by learning to measure things very accuratel... | [
"by using correct verb tenses",
"by fixing run-on sentences"
] | 1 | closed choice | grade6 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | When you review a fellow student's writing, try to make your feedback clear and specific. You can use questions such as the following to guide your feedback:
Ideas and development: Does the writer express a clear main idea and develop it with evidence, examples, and analysis?
Organization: Does the writer order ideas i... | The writer could best improve his or her grammar and mechanics by fixing run-on sentences.
For example, the writer could divide each of the underlined run-on sentences into two complete sentences.
When I'm asked to name my favorite teacher, I immediately think of Mr. Sweeney. In fifth grade, Mr. Sweeney taught us all a... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Julia gazed at the ancient pug that seemed to sleep all day and noted, "You're an energetic puppy!" | [
"idiom",
"verbal irony"
] | 1 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
An energetic puppy shows verbal irony because an old, exhausted dog is far from an energetic puppy. | |
Not supported with pagination yet | Which text message is more formal? | [
"Ms. Ellis is already here. She's waiting in the lobby.",
"Heads up! Ellis is here. In the lobby."
] | 0 | closed choice | grade9 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The first text message is more formal. It uses complete sentences, avoids slang (heads up), and uses the person's title (Ms. Ellis). The other text message includes more casual language and sentence fragments. | |
Not supported with pagination yet | Which sentence states a fact? | [
"Chicago's Willis Tower is 1,450 feet tall.",
"The Willis Tower ruins the beauty of Chicago's downtown."
] | 0 | closed choice | grade5 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved to be true. Facts can be proved by observing, measuring, or studying information.
The flag of the United States has 13 stripes.
This is a fact. It can be proved by looking at the flag and counting the number of stripes.
An opinion is something that a person believes, thinks, or fe... | The first sentence states a fact.
Chicago's Willis Tower is 1,450 feet tall.
It can be proved by checking an accurate website about the Willis Tower.
The second sentence states an opinion.
The Willis Tower ruins the beauty of Chicago's downtown.
Ruins the beauty shows what a person believes, thinks, or feels. Another p... | |
Not supported with pagination yet | Is washing clothes a good or a service? | [
"a service",
"a good"
] | 0 | closed choice | grade2 | social science | economics | Economics | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether washing clothes is a good or a service, ask these questions:
Is washing clothes something you can touch? No.
Is washing clothes a job you might pay someone else to do? Yes.
So, washing clothes is a service. | |
Which part of the soybean plant do we usually eat? | [
"the seeds",
"the leaves",
"the fruit"
] | 0 | People use soybean plants for food. We usually eat the part of this plant that can grow into a new plant. | closed choice | grade4 | natural science | biology | Plants | Classify fruits and vegetables as plant parts | The fruits and vegetables we eat are parts of plants! Plants are made up of different structures. The different structures carry out important functions.
The roots take in water and nutrients from the soil. They also hold the plant in place in the soil.
The stem supports the plant. It carries food, water, and nutrients... | The part of the soybean plant we usually eat is the seeds. They can grow into a new plant. | |
Not supported with pagination yet | Complete the statement. Assume that the water balloon's mass did not change.
The gravitational potential energy stored between the water balloon and Earth () as the water balloon fell toward Andy. | [
"stayed the same",
"increased",
"decreased"
] | 2 | Read the text about an object in motion.
Hazel dropped a water balloon off a balcony. The water balloon fell toward her friend Andy, who was standing below the balcony. | closed choice | grade8 | 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 water balloon and the center of Earth changed.
Andy was lower than the balcony. As the water balloon fell toward Andy, the distance between the water balloon and the center of Earth decreased. So, the gravitational potential energy stored between the water balloon and Earth decr... |
Not supported with pagination yet | Which logical fallacy is used in the text?
Thanks to her enduring popularity with employees, Lucy Shepherd is the best-liked CEO in our company's history. | [
"circular reasoning: an argument that supports a claim with the claim itself",
"false dichotomy: an argument that presents only two choices when more options exist"
] | 0 | closed choice | grade8 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Lucy Shepherd is well-liked, because she's popular. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning. | |
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. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | 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 | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in the two samples has the same mass, and the particles in both samples have the same average speed. So, the particles in both samples have the same average kinetic energy.
Because the particles in both samples have the same average kinetic energy, the samples must have the same temperature. | |
What can Chloe and Justin trade to each get what they want? | [
"Justin can trade his broccoli for Chloe's oranges.",
"Chloe can trade her tomatoes for Justin's carrots.",
"Chloe can trade her tomatoes for Justin's broccoli.",
"Justin can trade his almonds for Chloe's tomatoes."
] | 2 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Chloe and Justin open their lunch boxes in the school cafeteria. Neither Chloe nor Justin 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.
Chloe wants broccoli. Justin 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 | Which tense does the sentence use?
My skin swelled because of the bee sting. | [
"past tense",
"future tense",
"present tense"
] | 0 | 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 past tense. You can tell because it uses a past-tense verb, swelled. The verb ends in -ed and tells you about something that has already happened. |
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.