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Select the fish below. | [
"goldfish",
"woodpecker"
] | 0 | Fish live underwater. They have fins, not limbs. A catfish is an example of a fish. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A goldfish is a fish. It lives underwater. It has fins, not limbs.
A woodpecker is a bird. It has feathers, two wings, and a beak. | |
Which country is highlighted? | [
"Barbados",
"Saint Vincent and the Grenadines",
"Grenada",
"Saint Lucia"
] | 1 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Vincent and the Grenadines. | |||
What is the capital of Massachusetts? | [
"Boston",
"Augusta",
"Cambridge",
"Plymouth"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Boston is the capital of Massachusetts. | |||
What is the name of the colony shown? | [
"Delaware",
"New Hampshire",
"Illinois",
"Pennsylvania"
] | 1 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
It's an open secret that Brett is writing a book based on his experiences living in Singapore. He never talks about it, but almost all his friends know. | [
"euphemism",
"oxymoron"
] | 1 | closed choice | grade10 | 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.
Open secret is a contradiction, because open describes something that is freely or publicly known, and a secret is hidden. | |
Not supported with pagination yet | Would you find the word flicker on a dictionary page with the following guide words?
fire - fought | [
"no",
"yes"
] | 1 | yes or no | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since flicker is between the guide words fire - fought, it would be found on that page. | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Uncle Ted,",
"Dear uncle Ted,"
] | 0 | closed choice | grade3 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first greeting is correct:
Its first word is capitalized, and it ends with a comma. Uncle Ted is capitalized because it is a proper noun. | |
What is the capital of Washington? | [
"Olympia",
"Houston",
"Helena",
"Seattle"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Olympia is the capital of Washington. | |||
Not supported with pagination yet | How long does it take to go for a walk with a dog? | [
"14 minutes",
"14 hours"
] | 0 | Select the better estimate. | closed choice | grade2 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes to go for a walk with a dog is 14 minutes.
14 hours is too slow. |
Which solution has a higher concentration of pink particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 1 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
Select the fish below. | [
"California newt",
"goldfish",
"red salamander",
"white stork"
] | 1 | Fish live underwater. They have fins, not limbs.
Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A Banggai cardinalfish is an example of a fish. | 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 goldfish is a fish. It lives underwater. It has fins, not limbs.
Goldfish are popular as pets in many countries today. They were first kept as pets by people in ancient China.
A California newt is an amphibian. It has moist skin and begins its life in water.
Some newts live in water. Other newts live on land but lay ... | |
Not supported with pagination yet | Select the animal that does not have a backbone. | [
"weaver ant",
"turkey vulture"
] | 0 | Hint: Insects, spiders, and worms do not 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 turkey vulture is a bird. Like other birds, a turkey vulture has a backbone.
A weaver ant is an insect. Like other insects, a weaver ant does not have a backbone. It has a hard outer cover. |
What is the name of the colony shown? | [
"Delaware",
"Virginia",
"Kentucky",
"Tennessee"
] | 1 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Virginia.
The Virginia Colony included land that would later become part of the state of West Virginia. West Virginia was never its own colony. | |||
What is the capital of Louisiana? | [
"Madison",
"Jefferson City",
"Baton Rouge",
"Jackson"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Baton Rouge is the capital of Louisiana. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
I've heard that Ellen & Co. is downsizing, so I'm happy to see that their store in downtown Greenville will remain open for now. | [
"euphemism",
"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 a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Downsizing is an indirect way of saying that the company is planning on firing employees, closing shops or branches, and/or reducing its budget. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | 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,... | 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 1 than in Pair 2. So, the magnitude of the magnetic force is greater in Pair 1 than in Pair 2. | |
Select the organism in the same genus as the plains zebra. | [
"Equus zebra",
"Cervus canadensis",
"Macropus rufus"
] | 0 | This organism is a plains zebra. Its scientific name is Equus quagga. | 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 plains zebra's scientific name is Equus quagga. The first word of its scientific name is Equus.
Cervus canadensis is in the genus Cervus. The first word of its scientific name is Cervus. So, Cervus canadensis and Equus quagga are not in the same genus.
Equus zebra is in the genus Equus. The first word of its scientif... | |
Not supported with pagination yet | Which sentence states a fact? | [
"Jackie Robinson is the greatest baseball player in modern major league baseball history.",
"Jackie Robinson was the first African American baseball player in modern major league baseball."
] | 1 | closed choice | grade5 | social science | civics | Social studies skills | Identify facts and opinions | The first sentence states a fact.
Jackie Robinson was the first African American baseball player in modern major league baseball.
It can be proved by reading a book about the history of baseball.
The second sentence states an opinion.
Jackie Robinson is the greatest baseball player in modern major league baseball histo... | ||
Not supported with pagination yet | Complete the sentence.
Water vapor condensing on a bathroom mirror is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Burning a piece of paper is a chemical change. When paper gets hot enough, it reacts with oxygen in the air and burn... | Water vapor condensing on a bathroom mirror is a change of state. So, it is a physical change. The water changes state from gas in the air to liquid water on the mirror. But the water vapor and the liquid water are both made of water. | |
Not supported with pagination yet | Is this a run-on sentence?
Ms. Todd, an interior designer, asks her clients to fill out a design questionnaire she uses it to get a sense of their personalities and style preferences. | [
"yes",
"no"
] | 0 | 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 a run-on sentence. It is formed from two sentences run together, joined without punctuation.
Ms. Todd, an interior designer, asks her clients to fill out a design questionnaire she uses it to get a sense of their personalities and style preferences.
Here is one way to fix the run-on sentence:
Ms. Todd, an inter... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Luke's room is as tidy as an overgrown garden. | [
"verbal irony",
"pun"
] | 0 | closed choice | grade7 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
As tidy as an overgrown garden shows verbal irony because an overgrown garden is not tidy. | |
Which better describes the Tibetan Plateau ecosystem? | [
"It has mostly small plants. It also has soil that is frozen year-round.",
"It has long, cold winters. It also has many evergreen trees."
] | 0 | Figure: Tibetan Plateau.
The Tibetan Plateau is a tundra ecosystem located in Tibet, western China, and northern India. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A tundra is a type of ecosystem. Tundras have the following features: long, cold winters and short, cold summers, soil that is frozen year-round, and mostly small plants. So, the Tibetan Plateau has mostly small plants. It also has soil that is frozen year-round. | |
What is the capital of Nebraska? | [
"Lansing",
"Annapolis",
"Lincoln",
"Concord"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Lincoln is the capital of Nebraska. | |||
Not supported with pagination yet | Select the bird. | [
"sea otter",
"western toad",
"salmon",
"common crane"
] | 3 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds have feathers, two wings, and a beak. | A sea otter is a mammal. It has fur and feeds its young milk.
Sea otters have very thick fur. Their fur keeps them warm in cold water.
A western toad is an amphibian. It has moist skin and begins its life in water.
Toads do not have teeth! They swallow their food whole.
A common crane is a bird. It has feathers, two wi... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Akira, I've told you a million times: you need to dry the dishes before you put them away. | [
"hyperbole",
"oxymoron"
] | 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 hyperbole, an obvious exaggeration that is not meant to be taken literally.
A million times is an exaggeration, since it is unlikely that Akira has actually been told this a million times. | |
Which of these states is farthest north? | [
"Florida",
"Tennessee",
"South Carolina",
"Oregon"
] | 3 | closed choice | grade5 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the north arrow is pointing. Oregon is farthest north. | ||
Complete the statement.
Fluorine is (). | [
"a compound",
"an elementary substance"
] | 1 | The model below represents a molecule of fluorine. luorine is found in chemicals that are used to make some types of waterproof clothes. | closed choice | grade8 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | Use the model to determine whether fluorine is an elementary substance or a compound.
Step 1: Interpret the model.
In the ball-and-stick model shown above, both of the balls are the same color:
. The legend shows that light green represents the chemical element with the atomic symbol F. So, the model shows you that a m... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Thanks,\nShannon",
"thanks,\nShannon"
] | 0 | 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. | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Best regards,\nPamela",
"best regards,\nPamela"
] | 0 | 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. | |
Select the bird below. | [
"red crowned crane",
"mandarinfish",
"ocean sunfish",
"olive toad"
] | 0 | Birds have feathers, two wings, and a beak.
Birds are warm-blooded. Warm-blooded animals can control their body temperature.
A toco toucan is an example of a bird. | 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. | An olive toad is an amphibian. It has moist skin and begins its life in water.
Toads do not have teeth! They swallow their food whole.
A red crowned crane is a bird. It has feathers, two wings, and a beak.
Cranes wade in shallow water to look for food. Cranes eat insects, worms, and plants.
An ocean sunfish is a fish. ... | |
Not supported with pagination yet | Which tense does the sentence use?
Uncle Jacob will cook dinner for us. | [
"future tense",
"past tense",
"present tense"
] | 0 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, cook. The verb tells you about something that is going to happen. | |
What can Jackson and Tina trade to each get what they want? | [
"Jackson can trade his tomatoes for Tina's broccoli.",
"Tina can trade her almonds for Jackson's tomatoes.",
"Tina can trade her broccoli for Jackson's oranges.",
"Jackson can trade his tomatoes for Tina's carrots."
] | 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.
Jackson and Tina open their lunch boxes in the school cafeteria. Neither Jackson nor Tina 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.
Jackson wants broccoli. Tina 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. | ||
Which ocean is highlighted? | [
"the Atlantic Ocean",
"the Pacific Ocean",
"the Arctic Ocean",
"the Southern Ocean"
] | 1 | closed choice | grade6 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Pacific Ocean. | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
idea - inspire | [
"issue",
"immense"
] | 1 | 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 immense is between the guide words idea - inspire, it would be found on that page. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
pick - possible | [
"playmate",
"painter"
] | 0 | closed choice | grade2 | 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 playmate is between the guide words pick - possible, it would be found on that page. | |
Not supported with pagination yet | What is the volume of a test tube? | [
"20 milliliters",
"20 liters"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a test tube is 20 milliliters.
20 liters is too much. |
What is the probability that a dachshund dog produced by this cross will have rough fur? | [
"3/4",
"1/4",
"2/4",
"4/4",
"0/4"
] | 3 | In a group of dachshund dogs, some individuals have rough fur and others have soft fur. In this group, the gene for the fur texture trait has two alleles. The allele for soft fur (f) is recessive to the allele for rough fur (F).
This Punnett square shows a cross between two dachshund dogs. | 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... | ||
Not supported with pagination yet | Which sugar cube has less thermal energy? | [
"the hotter sugar cube",
"the colder sugar cube"
] | 1 | Two sugar cubes are identical except for their temperatures. | closed choice | grade6 | natural science | physics | Thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two sugar cubes are made of the same material and have the same mass. So, the colder sugar cube has less thermal energy. |
Based on the arrows, which of the following organisms is a consumer? | [
"collared lemming",
"bilberry"
] | 0 | Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade4 | natural science | biology | Ecosystems | Interpret food webs | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Consumers eat other organisms. So, there are arrows in a food web that point from other organisms to consumers.
The collared lemming has arrows pointing to it from the bear sedge and the lichen. So, the collared lemming is a consumer.
The bilberry does not have any arrows pointing to it. So, the bilberry is a producer,... | |
Which property do these three objects have in common? | [
"sticky",
"flexible",
"slippery"
] | 0 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A flexible object can be folded or bent without breaking easily. The ice pop is not flexible.
A sticky object can attach or stick to other things. All three objects are sticky.
A slippery object is hard to hold onto or stand on. The caramel corn is n... | |
Select the organism in the same species as the great gray owl. | [
"Larus occidentalis",
"Strix nebulosa",
"Sturnus vulgaris"
] | 1 | This organism is a great gray owl. Its scientific name is Strix nebulosa. | closed choice | grade4 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A great gray owl's scientific name is Strix nebulosa.
Sturnus vulgaris does not have the same scientific name as a great gray owl. So, Strix nebulosa and Sturnus vulgaris are not in the same species.
Larus occidentalis does not have the same scientific name as a great gray owl. So, Strix nebulosa and Larus occidentalis... | |
Select the statement that is true about Sydney's average monthly precipitation. | [
"More precipitation falls in June than in December.",
"March is the driest month of the year.",
"Less precipitation falls in February than in November."
] | 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 Sydney, look at the graph.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "Jun" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
Choice "Less precipitation falls in February than in November." is incorrect.
The average precipitation in Feb... | |
Which country is highlighted? | [
"New Zealand",
"Nauru",
"the Federated States of Micronesia",
"Palau"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Palau. | |||
Not supported with pagination yet | Which is a compound sentence? | [
"At the auction, several paintings by famous artists were for sale, including one by Pablo Picasso.",
"Nile crocodiles mainly eat fish, but they will also eat zebras, birds, and other crocodiles."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The first sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction but.
Nile crocodiles mainly eat fish, but they will also eat zebras, birds, and other crocodiles. | |
In this food chain, the slender wheatgrass is a producer. Why? | [
"It makes its own food.",
"It eats a consumer.",
"It eats another organism."
] | 0 | This diagram shows a food chain from a grassland ecosystem in Wyoming. | closed choice | grade5 | natural science | biology | Ecosystems | Identify roles in food chains | Every organism needs food to stay alive. Organisms get their food in different ways. A food chain shows how organisms in an ecosystem get their food.
The food chain begins with the producer. A producer can change matter that is not food into food. Many producers use carbon dioxide, water, and sunlight to make sugar. Ca... | In this food chain, the slender wheatgrass is a producer because it makes its own food. The slender wheatgrass uses carbon dioxide, water, and sunlight to make its own food. | |
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 Jordan. | [
"increased",
"stayed the same",
"decreased"
] | 2 | Read the text about an object in motion.
Tracy dropped a water balloon off a balcony. The water balloon fell toward her friend Jordan, who was standing below the balcony. | closed choice | grade7 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between the water balloon and the center of Earth changed.
Jordan was lower than the balcony. As the water balloon fell toward Jordan, the distance between the water balloon and the center of Earth decreased. So, the gravitational potential energy stored between the water balloon and Earth ... |
What is the capital of Kentucky? | [
"Hartford",
"Frankfort",
"Colorado Springs",
"Louisville"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Frankfort is the capital of Kentucky. | |||
Not supported with pagination yet | Is a juice box 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 juice box is a good or a service, ask these questions:
Is a juice box something you can touch? Yes.
Is a juice box a job you might pay someone else to do? No.
So, a juice box is a good. | |
Not supported with pagination yet | What information supports the conclusion that Tiana inherited this trait? | [
"Tiana's parents have dark skin. They passed down this trait to Tiana.",
"Tiana and her father both have dark hair."
] | 0 | Read the description of a trait.
Tiana 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... | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"neither; the samples have the same temperature",
"sample A",
"sample B"
] | 1 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | 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... | |
What is the capital of South Dakota? | [
"Pierre",
"Frankfort",
"Nampa",
"Sioux Falls"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Pierre is the capital of South Dakota. | |||
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear dr. Flynn,",
"Dear Dr. Flynn,"
] | 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 first greeting is correct:
Its first word is capitalized, and it ends with a comma. Dr. Flynn is capitalized because it is a proper noun. | |
Not supported with pagination yet | How long is a raisin? | [
"12 meters",
"12 kilometers",
"12 millimeters",
"12 centimeters"
] | 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 raisin is 12 millimeters.
12 centimeters, 12 meters, and 12 kilometers are all too long. |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her ideas and development?
The Servicemen's Readjustment Act, also known as the G.I. Bill, gave veterans money to pay college costs and buy books and supplies. Ex-servicemen were also eligible to receive low-interest home loans so t... | [
"by stating the main idea clearly",
"by removing a second main idea"
] | 0 | closed choice | grade10 | 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 ideas and development by stating the main idea clearly.
For example, the writer could add a main idea statement before the underlined sentence, such as The Servicemen's Readjustment Act of 1944 was a widely influential bill that helped veterans in many ways.
The Servicemen's Rea... | |
Which country is highlighted? | [
"Saint Lucia",
"Saint Kitts and Nevis",
"Grenada",
"Saint Vincent and the Grenadines"
] | 3 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Vincent and the Grenadines. | |||
Which of these cities is marked on the map? | [
"Boston",
"New York City",
"Baltimore",
"Pittsburgh"
] | 2 | closed choice | grade4 | social science | geography | Cities | Cities of the Northeast | The city is Baltimore, Maryland. New York City, Boston, and Pittsburgh are marked with gray circles on the map below. | |||
Not supported with pagination yet | Using only these supplies, which question can Edna investigate with an experiment? | [
"Does the basketball bounce higher on gravel or on grass?",
"Do larger basketballs bounce higher than smaller basketballs on a brick patio?",
"Does the basketball bounce higher on a lawn or on a dirt path?"
] | 0 | Edna gets a basketball for her birthday and dribbles it around her neighborhood. She notices that sometimes the ball bounces higher than other times. She wonders what factors affect how high her ball bounces. So, she decides to design an experiment. She has the following supplies available:
one basketball
access to a b... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | Which text uses the word unique in its traditional sense? | [
"Angie wanted her daughter to have a unique name, so she browsed baby name websites for months to find the perfect one.",
"Angie made all of her daughter's baby clothes by hand, including a unique hand-knitted romper that she designed herself."
] | 1 | closed choice | grade9 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses unique in its traditional sense: being the only one of its kind.
Angie made all of her daughter's baby clothes by hand, including a unique hand-knitted romper that she designed herself.
The first text uses unique in its nontraditional sense: interesting or unusual. Angie may have been looking for a... | |
Not supported with pagination yet | Select the fish. | [
"shoebill",
"golden frog",
"bison",
"hammerhead shark"
] | 3 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Fish live underwater. They have fins, not limbs. | A hammerhead shark is a fish. It lives underwater. It has fins, not limbs.
Hammerhead sharks get their names from the shape of their heads. They have a wide, flat head and a small mouth.
A golden frog is an amphibian. It has moist skin and begins its life in water.
Frogs live near water or in damp places. Most frogs la... | |
Not supported with pagination yet | Is a bowl a good or a service? | [
"a good",
"a service"
] | 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 a bowl is a good or a service, ask these questions:
Is a bowl something you can touch? Yes.
Is a bowl a job you might pay someone else to do? No.
So, a bowl is a good. | |
Not supported with pagination yet | What does the euphemism in this text suggest?
Mr. Hancock is enjoying his golden years in a luxurious beachside community just down the street from his grandchildren. | [
"Mr. Hancock is rich.",
"Mr. Hancock is old."
] | 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 golden years indicates that Mr. Hancock is old. Golden years is a nicer way of referring to old age. | |
Which of the following organisms is the secondary consumer in this food web? | [
"beaver",
"bobcat",
"persimmon tree",
"swallowtail caterpillar"
] | 1 | Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade7 | natural science | biology | Ecological interactions | Interpret food webs I | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Secondary consumers eat primary consumers, and primary consumers eat producers. So, in a food web, secondary consumers have arrows pointing to them from primary consumers. Primary consumers have arrows pointing to them from producers.
The black racer has an arrow pointing to it from the pine vole. The pine vole is a pr... | |
Which solution has a higher concentration of yellow particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 2 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the 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... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is stronger in Pair 1.",
"The magnetic force is stronger in Pair 2.",
"The strength 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. | closed choice | grade4 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are closer together, the magnetic force between them is stronger.
The magnets in Pair 1 are closer together than the magnets in Pair 2. So, the magnetic force is stronger in Pair 1 than in Pair 2. | |
Which of the following was an independent variable in this experiment? | [
"the number of mosquito bites",
"the type of mosquito repellent used"
] | 1 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Lamar liked to hike, but he was often bothered by mosquito bites. He read that rubbing lavender flowers on your skin can repel mosquitoes. Lamar wanted to find out if lavender flowers work better as a mosquito... | closed choice | grade6 | 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 | Suppose Monica decides to watch the comedy. Which result would be a cost? | [
"Monica will get to watch the movie that she is more excited about.",
"Monica will give up the chance to watch a movie with her sister."
] | 1 | Monica is deciding whether to watch a comedy or an action movie. She would prefer to watch a comedy. But she also wants to watch a movie with her sister. Monica's sister will only watch an action movie. | closed choice | grade4 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Monica wants or needs:
Monica will give up the chance to watch a movie with her sister. |
Which animal's legs are also adapted for wading? | [
"African sacred ibis",
"Cape vulture"
] | 0 | Flamingos live near marshes, rivers, and oceans. They eat small crustaceans that live in shallow water. Flamingos get their food by walking through water, or wading.
The 's legs are adapted for wading. They are lightweight and keep the bird's body above the water.
Figure: flamingo. | closed choice | grade3 | 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 flamingo.
Long legs help the flamingo keep its body above the surface of the water while wading. Thin legs are easier to move through the water.
Now look at each animal. Figure out which animal has a similar adaptation.
The African sacred ibis has long, thin legs. Its legs are adapted for wad... | |
Which of the following statements is true? | [
"A substance's chemical structure depends only on the number and types of atoms in each molecule of the substance.",
"Both the smell and the taste of methyl anthranilate contribute to its grape flavor."
] | 1 | A substance's physical and chemical properties are all determined by its chemical structure. Its chemical structure depends on the number and types of atoms in each of its molecules, as well as on how those atoms are arranged.
One property of a substance is its flavor, which is its odor and taste combined. The chemical... | closed choice | grade7 | natural science | chemistry | Chemical reactions | Explore chemical structure and properties: food flavors | |||
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."
] | 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 and shapes. | closed choice | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The larger the magnets, the greater the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is larger in Pair 2 than in Pair 1. So, the magnitud... | |
Does Daucus carota have cells that have a nucleus? | [
"no",
"yes"
] | 1 | This organism is Daucus carota. It is a member of the plant kingdom.
Daucus carota is commonly called a carrot plant. The stem and leaves of the carrot plant are green and grow above ground. The root is often orange and grows underground. When people say they eat carrots, they usually mean the root of the carrot plant! | yes or no | grade5 | natural science | biology | Classification | Describe, classify, and compare kingdoms | Daucus carota is a plant. Plant cells have a nucleus. | ||
Not supported with pagination yet | Which tense does the sentence use?
Mr. Johnson welcomes us to his home. | [
"present tense",
"future tense",
"past tense"
] | 0 | 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 present tense. You can tell because it uses a present-tense verb, welcomes. The verb ends in -s and tells you about something that is true or happening now. | |
Not supported with pagination yet | Based on this information, what is this rose plant's phenotype for the thorns trait? | [
"RR",
"having thorns"
] | 1 | In a group of rose plants, some individuals have thorns and others do not. In this group, the gene for the thorns trait has two alleles. The allele R is for having thorns, and the allele r is for not having thorns.
A certain rose plant from this group has thorns. This plant has two alleles for having thorns. | 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. The rose plant's observable version of the thorns trait is having thorns. So, the plant's phenotype for the thorns trait is having thorns. |
Not supported with pagination yet | Which of these things did the Thirteen Colonies have at the start of the Revolutionary War? | [
"their own national bank",
"their own national navy",
"none of the above",
"their own national government"
] | 2 | closed choice | grade4 | social science | us-history | The American Revolution | The American Revolution: preparing for war | At the start of the Revolutionary War, the colonies were still ruled by Great Britain. They were not a separate country. So, they did not have many of the things most countries have.
No national government: The Thirteen Colonies had no way to write laws together. They also had no way to collect taxes to support a war.
... | ||
Not supported with pagination yet | What is the temperature of a warm swimming pool? | [
"27°F",
"27°C"
] | 1 | Select the better estimate. | closed choice | grade6 | natural science | units-and-measurement | Units and measurement | Estimate temperatures | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units.
212°F | Water boils | 100°C
98.6°F | Body temperature | 37°C
68°F ... | The better estimate for the temperature of a warm swimming pool is 27°C.
27°F is too cold. |
Which property matches this object? | [
"soft",
"scratchy"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. | Look at the object.
Think about each property.
A soft object changes shape when you squeeze it. The ball of wet clay is soft.
A scratchy object is rough and itchy against your skin. The ball of wet clay is not scratchy. | |
Identify the question that Emmet's experiment can best answer. | [
"Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?",
"Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Emmet divided 40 evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Emmet op... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | Which logical fallacy is used in the text?
Mr. Harmon's class is so boring! Why are all literature classes so dull? | [
"hasty generalization: a broad claim based on too few observations",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences",
"false causation: the assumption that because two things happened together, one caused the other"
] | 0 | 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 a single boring class indicates that all classes on the same topic are dull. However, this isn't necessarily true. This illustrates a type of logical fallacy known as a hasty generalization. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
If you have any doubts that Nick Hardin is the ideal candidate, just look at how many people have come out to vote for him. | [
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"guilt by association: a negative association intended to discredit someone or something"
] | 0 | closed choice | grade10 | 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 Nick Hardin is the ideal candidate because so many people turned out to vote for him. However, just because many people voted for Nick Hardin, it doesn't necessarily mean he is the ideal candidate. He could be a popular candidate for other reasons. This illustrates a type of logical fallacy known a... | |
Select the bird below. | [
"cane toad",
"tokay gecko",
"Nile crocodile",
"cassowary"
] | 3 | Birds have feathers, two wings, and a beak.
Birds are warm-blooded. Warm-blooded animals can control their body temperature.
A Steller's sea eagle is an example of a bird. | 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 cassowary is a bird. It has feathers, two wings, and a beak.
Cassowaries have wings, but they cannot fly! They can run very fast.
A cane toad is an amphibian. It has moist skin and begins its life in water.
Toads do not have teeth! They swallow their food whole.
A tokay gecko is a reptile. It has scaly, waterproof sk... | |
Based on the maps above, what is true about the Middle Colonies compared to the other colonial regions? | [
"It was was easier to grow crops in the Middle Colonies than in the Southern Colonies.",
"It was easier to grow crops in the Middle Colonies than in New England.",
"It was harder to grow crops in the Middle Colonies than in New England."
] | 1 | The two maps below give information about the colonial regions of North America. The first map shows how good the soil was for growing crops. The second map shows how many months each year the weather was good enough to grow crops. Use this information to answer the question below. | closed choice | grade4 | social science | us-history | English colonies in North America | Middle colonies: economy and society | Look at the maps.
It was easier to grow crops in the Middle Colonies than in New England. Each map shows this in a different way:
More fertile soil: Look at the map on the left. Fertile soil is good for growing crops. Most of the Middle Colonies have either somewhat fertile or most fertile soil. Most of New England is ... | ||
Not supported with pagination yet | Which correctly shows the title of a book? | [
"***Apple of an Eye***",
"\"Apple of an Eye\""
] | 0 | closed choice | grade3 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, or article should be in quotation marks.
"You Are My Sunshine" | A book should be in italics.
The correct title is **Apple of an Eye**. | |
Not supported with pagination yet | Select the mixture. | [
"oxygen",
"silver and glass balls"
] | 1 | closed choice | grade2 | natural science | physics | Mixtures | Identify mixtures | A pure substance is made of only one type of matter.
A mixture is made of two or more types of matter mixed together. | ||
Which property do these three objects have in common? | [
"bouncy",
"transparent",
"blue"
] | 0 | Select the best answer. | closed choice | grade3 | 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. | Look at each object.
For each object, decide if it has that property.
You can see clearly through a transparent object. None of the objects are transparent.
A bouncy object will bounce back from the floor if you drop it. All three objects are bouncy.
Blue is a color.
This color is blue. The rubber ball and the spring a... | |
Not supported with pagination yet | Which sentence uses a metaphor? | [
"Her laughter was like a bird's song.",
"Her laughter was a bird's song."
] | 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... | This sentence uses a metaphor:
Her laughter was a bird's song.
The words laughter and bird's song are compared without the word like or as.
This sentence uses a simile:
Her laughter was like a bird's song.
The words laughter and bird's song are compared using the word like. | |
What is the capital of Maryland? | [
"Annapolis",
"Trenton",
"Harrisburg",
"Baltimore"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Annapolis is the capital of Maryland. | |||
Not supported with pagination yet | Choose the poem that uses end rhyme. | [
"Sign of a nation, great and strong\nToward her people from foreign wrong:\nPride and glory and honor,—all\nLive in the colors to stand or fall.",
"I break a staff.\nI break the tough branch.\nI know no light in the woods.\nI have lost pace with the winds."
] | 0 | From Henry Holcomb Bennett, "The Flag Goes By" and from H. D., "Orion Dead" | closed choice | grade4 | language science | reading-comprehension | Poetry elements | Identify elements of poetry | Poetry is a special kind of writing. It has many elements that make it different from ordinary writing. Knowing these elements can help you talk about poetry, understand it better, and enjoy it more.
A poem rhymes when it has a pattern of words that end in the same sound.
End rhyme is when the rhymes appear at the end ... | This poem uses end rhyme. Its rhymes come at the end of its lines.
Toward her people from foreign wrong:
Live in the colors to stand or fall. |
Is a baseball a solid, a liquid, or a gas? | [
"a solid",
"a liquid",
"a gas"
] | 0 | closed choice | grade3 | natural science | physics | States of matter | Classify matter as solid, liquid, or gas | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a 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 is a solid. A solid has a size and shape of its own.
If you hit a baseball with a bat, the baseball will still have a size and shape of its own. | ||
Not supported with pagination yet | Which is a simple sentence? | [
"Unless the weather forecast is wrong, you'll probably need an umbrella tomorrow.",
"Darell stacked a crate of oranges on top of the crate of lemons and checked both crates off his order sheet."
] | 1 | closed choice | grade6 | 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 simple sentence. It is a single independent clause.
Darell stacked a crate of oranges on top of the crate of lemons and checked both crates off his order sheet. | |
What is the expected ratio of offspring that have Huntington's disease to offspring that do not have Huntington's disease? Choose the most likely ratio. | [
"2:2",
"1:3",
"0:4",
"4:0",
"3:1"
] | 3 | This passage describes the Huntington's disease trait in humans:
Huntington's disease is a condition that causes the death of brain cells over time. This loss of cells interferes with brain function and may lead to uncontrolled movements, difficulty thinking, and changes in behavior.
In a group of humans, some individu... | 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 Huntington's disease, consider whether each phenotype is the dominant or recessive allele's version of the Huntington's disease trait. The question tells you that the H allele, which is for having Huntington's disease, is domin... | |
Not supported with pagination yet | Which change best matches the sentence?
Lava comes out of a crack in Earth's surface. | [
"wildfire",
"volcanic eruption",
"flood"
] | 1 | closed choice | grade3 | natural science | earth-science | Earth events | Classify changes to Earth's surface I | |||
Not supported with pagination yet | Does this passage describe the weather or the climate?
Gary lives in a city that is often covered by thick stratus clouds. | [
"climate",
"weather"
] | 0 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade3 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Gary lives in a city that is often covered by thick stratus clouds.
This passage tells you about the usual clouds where Gary lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | Which logical fallacy is used in the text?
My grandfather eats candy all the time, and he's still got all of his teeth! Candy must not really rot people's teeth out. | [
"hasty generalization: a very broad claim based on very little evidence",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 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 eating a lot of candy never causes a person's teeth to rot out. However, even though the speaker's grandfather eats a lot of candy and has healthy teeth, that doesn't necessarily mean that it's true for everyone. This illustrates a type of logical fallacy known as a hasty generalization. | |
Not supported with pagination yet | What is the volume of a fish bowl? | [
"5 liters",
"5 milliliters"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a fish bowl is 5 liters.
5 milliliters is too little. |
Not supported with pagination yet | Compare the motion of two mountain bikers. Which mountain biker was moving at a higher speed? | [
"a mountain biker who moved 165kilometers in 5hours",
"a mountain biker who moved 135kilometers in 5hours"
] | 0 | closed choice | grade2 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about two objects... | Look at the distance each mountain biker moved and the time it took to move that distance.
One mountain biker moved 165 kilometers in 5 hours.
The other mountain biker moved 135 kilometers in 5 hours.
Notice that each mountain biker spent the same amount of time moving. The mountain biker who moved 165 kilometers moved... | |
Which of these states is farthest north? | [
"Nevada",
"Pennsylvania",
"Arkansas",
"Kentucky"
] | 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 north arrow is pointing. Pennsylvania is farthest north. | ||
Which country is highlighted? | [
"Tonga",
"Samoa",
"Tuvalu",
"Fiji"
] | 0 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tonga. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
I pulled Kenny off the project because his work was sloppy. While we're at it, let's pull Eva off the project, too. I haven't reviewed her work, but she's friends with Kenny, so we cannot rely on the quality of her work either. | [
"false dichotomy: an argument that presents only two choices when more options exist",
"guilt by association: a negative association intended to discredit someone or something",
"appeal to nature: the assumption that natural things are always good"
] | 1 | closed choice | grade9 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Eva's work is low quality because her friend's work is low quality. However, the work of Eva's friend does not necessarily reflect the quality of Eva's work. This illustrates a type of logical fallacy known as guilt by association. | |
Which better describes the Pisgah National Forest ecosystem? | [
"It has cold, wet winters. It also has only a few types of trees.",
"It has soil that is poor in nutrients. It also has only a few types of trees."
] | 0 | Figure: Pisgah National Forest.
The Pisgah National Forest is a temperate deciduous forest ecosystem in western North Carolina. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A temperate deciduous forest is a type of ecosystem. Temperate deciduous forests have the following features: warm, wet summers and cold, wet winters, soil that is rich in nutrients, and only a few types of trees. So, the Pisgah National Forest has cold, wet winters. It also has only a few types of trees. | |
Not supported with pagination yet | How long is a hiking trail? | [
"4 inches",
"4 yards",
"4 feet",
"4 miles"
] | 3 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a hiking trail is 4 miles.
4 inches, 4 feet, and 4 yards are all too short. |
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"a meticulous editor",
"a nitpicky editor"
] | 1 | closed choice | grade6 | language science | vocabulary | Shades of meaning | Positive and negative connotation | Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations.
For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations.
Eager has a positive connotation. It is a n... | A nitpicky editor has a more negative connotation. Nitpicky and meticulous both denote paying attention to small details. However, nitpicky suggests a person is overly critical about unimportant things, while meticulous suggests a person is careful and methodical. |
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.