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Why do people come to Panjin Red Beach? | [
"to eat the seepweed",
"to see its color"
] | 1 | Read the passage about Panjin Red Beach.
Panjin Red Beach is in China. For most of the year, the beach is green. But in the fall, it turns bright red! People come from all over to see the beautiful red color.
The beach looks red because it is covered in a plant called seepweed. Many plants cannot live so close to the s... | closed choice | grade2 | language science | reading-comprehension | Independent reading comprehension | Read and understand informational passages | Look at the passage. It tells you why people come to Panjin Red Beach.
Panjin Red Beach is in China. For most of the year, the beach is green. But in the fall, it turns bright red! People come from all over to see the beautiful red color. | ||
Not supported with pagination yet | What information supports the conclusion that Janelle inherited this trait? | [
"Janelle's biological mother often wears her straight hair in a ponytail.",
"Janelle's neighbor also has straight hair.",
"Janelle's biological parents have red hair. Janelle also has red hair."
] | 0 | Read the description of a trait.
Janelle 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 | Select the vertebrate. | [
"curlyhair tarantula",
"emerald tree boa",
"red-spotted purple butterfly",
"bess beetle"
] | 1 | Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | closed choice | grade4 | natural science | biology | Classification | Identify vertebrates and invertebrates | Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | An emerald tree boa is a reptile. Like other reptiles, an emerald tree boa is a vertebrate. It has a backbone.
A bess beetle is an insect. Like other insects, a bess beetle is an invertebrate. It does not have a backbone. It has an exoskeleton.
A red-spotted purple butterfly is an insect. Like other insects, a red-spot... |
Select the organism in the same genus as the green tree frog. | [
"Hyla japonica",
"Ardea cinerea",
"Cyanocitta cristata"
] | 0 | This organism is a green tree frog. Its scientific name is Hyla cinerea. | 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 green tree frog's scientific name is Hyla cinerea. The first word of its scientific name is Hyla.
Ardea cinerea and Hyla cinerea are not in the same genus.
These organisms are not in the same genus, but part of their scientific names is the same. Ardea cinerea and Hyla cinerea have the same species name within their ... | |
Which country is highlighted? | [
"Solomon Islands",
"Samoa",
"New Zealand",
"Australia"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Australia.
Is Australia a country or a continent?
Both! Australia is a country in Oceania, a region made up of many lands and islands in the Pacific Ocean. Many people say that Australia is the world's smallest continent. But some people call Oceania a continent instead. | |||
Not supported with pagination yet | Look at the word. Does it have a closed syllable or an open syllable?
she | [
"open",
"closed"
] | 0 | closed choice | grade2 | language science | word-study | Short and long vowels | Is the syllable open or closed? | Words are made up of syllables. Two kinds of syllables are closed and open.
A closed syllable has one vowel and ends with a consonant. It usually has a short vowel sound.
desk: short e
kit / ten: short i / short e
An open syllable ends with one vowel. It usually has a long vowel sound.
go: long o
he / ro: long e / long... | The word she ends with a vowel and has a long vowel sound. So, it has an open syllable. | |
After the Akkadian Empire ended, many cities and empires tried to control Mesopotamia. Around the 1790s BCE, which empire started controlling Mesopotamia? | [
"the Neo-Sumerian Empire",
"the Elamite Empire",
"the Babylonian Empire",
"the Akkadian Empire"
] | 2 | Look at the table. Then answer the question below. | closed choice | grade6 | social science | world-history | Ancient Mesopotamia | Mesopotamian empires | Look at the table.
The abbreviation "ca." stands for the Latin word, circa. Circa means "about." It indicates when a date is estimated. So, around 1792 BCE, the Babylonian Empire started controlling Mesopotamia.
The Babylonian (ba-bih-LOH-nee-in) Empire came after the Akkadian and Neo-Sumerian empires. The capital of t... | ||
Which of these cities is marked on the map? | [
"Austin",
"Memphis",
"Houston",
"Nashville"
] | 0 | closed choice | grade4 | social science | geography | Cities | Cities of the Southeast | The city is Austin, Texas. Houston, Memphis, and Nashville are marked with gray circles on the map below. | |||
Not supported with pagination yet | The donkeys move the carts at the same speed. Which cart is pulled with a larger force? | [
"a cart holding 61 pounds",
"a cart holding 66 pounds"
] | 1 | Two donkeys pull carts from the farmhouse to the yard. The carts are the same. Each cart is holding different tools. | closed choice | grade2 | natural science | physics | Force and motion | How do mass and force affect motion? | A force is a push or a pull.
A force can make an object start moving or stop an object that is moving. A force can also make an object speed up, slow down, or change direction.
Forces can be different sizes.
Think about trying to move a heavy object and a light object. Imagine you want to move them at the same speed. Y... | Look for the cart that is heavier.
A cart holding 66 pounds is heavier than a cart holding 61 pounds. So, the cart holding 66 pounds needs a larger force to start moving at the same speed as the other cart. |
Not supported with pagination yet | Which type of sentence is this?
The production of a single pound of honey requires nectar from approximately two million flowers. | [
"compound",
"complex",
"compound-complex",
"simple"
] | 3 | closed choice | grade10 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is simple. It is a single independent clause.
The production of a single pound of honey requires nectar from approximately two million flowers. | |
Not supported with pagination yet | What does this Works Cited entry indicate about the cited work?
"Sid Fernandez Calls It Quits After 14 Years." The Seattle Times 2 Aug. 1997: n. pag. Web. 10 July 2000. | [
"It was accessed on August 2, 1997.",
"It was written by Sid Fernandez.",
"The Seattle Times is the newspaper."
] | 2 | closed choice | grade11 | language science | reference-skills | Research skills | Understand a Works Cited entry (MLA 7th edition) | When writing research papers, you will often be asked to follow a particular style guide for your citations. One popular style guide is the Modern Language Association (MLA) Handbook.
Below are the basic formats for some common types of Works Cited entries. Consult the MLA Handbook for a complete list.
Books:
Format | ... | Look closely at the Works Cited entry:
"Sid Fernandez Calls It Quits After 14 Years." The Seattle Times 2 Aug. 1997: n. pag. Web. 10 July 2000.
You can tell that The Seattle Times is the name of the newspaper because it appears in italics. | |
Which of these continents does the prime meridian intersect? | [
"South America",
"Antarctica",
"Australia"
] | 1 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The prime meridian is the line at 0° longitude. It intersects Antarctica. It does not intersect South America or Australia. | ||
Not supported with pagination yet | What do these two changes have in common?
cutting your fingernails
stretching a rubber band | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes.",
"Both are only physical changes."
] | 3 | closed choice | grade3 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Cutting your fingernails is a physical change. Your fingernails are shorter after you cut them. But the pieces are still made of the same type of matter as the uncut fingernails.
Stretching a rubber band is a physical change. The rubber band gets longer. But it is still made of the same... | |
Which of these states is farthest north? | [
"Kansas",
"New Mexico",
"Kentucky",
"New Jersey"
] | 3 | 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. New Jersey is farthest north. | ||
Which solution has a higher concentration of green particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 1 | The diagram below is a model of two solutions. Each green ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... | |
Not supported with pagination yet | Select the plant. | [
"Mosquitoes can walk and fly.",
"Fir trees have green leaves."
] | 1 | closed choice | grade2 | natural science | biology | Classification | Identify plants and animals | Plants and animals are living things. Living things are called organisms.
Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can.
Animals also come in many shapes and sizes. Most animals can move around. A... | A fir tree is a plant. It has green leaves.
The leaves of fir trees are called needles.
A mosquito is an animal. It drinks nectar and fruit juice.
A mosquito is an insect. Only female mosquitoes drink blood. | |
Not supported with pagination yet | What do these two changes have in common?
burning food on a stove
an iceberg melting slowly | [
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling."
] | 2 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Burning food on a stove is a chemical change. When the food burns, the type of matter in it changes. The food turns black and gives off smoke.
An iceberg melting is a change of state. So, it is a physical change. An iceberg is made of frozen water. As it melts, the water changes from a ... | |
Not supported with pagination yet | Which organ stores memories? | [
"lungs",
"skeleton",
"brain"
] | 2 | closed choice | grade3 | natural science | biology | Animals | Human organs and their functions | |||
Not supported with pagination yet | Which is a simple sentence? | [
"The American badger, one of the fastest digging animals on the planet, can dig quickly through both soil and concrete.",
"When the submarine surfaced, a crowd of people on the shore gathered and stared at the rare sight."
] | 0 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the simple sentence. It is a single independent clause.
The American badger, one of the fastest digging animals on the planet, can dig quickly through both soil and concrete. | |
Not supported with pagination yet | What kind of sentence is this?
Roald Dahl had a great imagination. | [
"exclamatory",
"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. | |
Not supported with pagination yet | Select the wetland ecosystem. | [
"This ecosystem has:\ndaily flooding and draining of seawater\nwater that is rich in nutrients\nmany different types of organisms",
"This ecosystem has:\nland that is covered with water during most of the year\nsoil that is rich in nutrients\nother water ecosystems nearby"
] | 1 | closed choice | grade4 | natural science | biology | Ecosystems | Identify 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 ecosystems. Here are some ways in which these ecosystems can differ from each... | A wetland is a type of ecosystem. It has land that is covered with water during most of the year, soil that is rich in nutrients, and other water ecosystems nearby.
Choice 1 is a wetland ecosystem. It is covered with water for most of the year. Wetlands also have soil that is rich in nutrients.
Choice 2 is a tide pool ... | |
Not supported with pagination yet | Which sentence states a fact? | [
"The Grand Canyon was carved by the Colorado River.",
"The Grand Canyon is the most breathtaking place the United States."
] | 0 | closed choice | grade4 | 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 second sentence states a fact.
The Grand Canyon was carved by the Colorado River.
It can be proved by visiting the Grand Canyon National Park website.
The first sentence states an opinion.
The Grand Canyon is the most breathtaking place the United States.
Most breathtaking shows what a person believes, thinks, or f... | |
Not supported with pagination yet | Which is a simple sentence? | [
"My grandfather was born in Germany, and my grandmother is from Virginia.",
"Before practice the basketball players stretch on the floor."
] | 1 | closed choice | grade3 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The first sentence is the simple sentence. It has one subject and predicate.
Before practice the basketball players stretch on the floor. | |
Identify the question that Franklin and Ronald's experiment can best answer. | [
"Do ping pong balls travel farther when launched from a 30° angle compared to a 45° angle?",
"Do ping pong balls stop rolling along the ground sooner after being launched from a 30° angle or a 45° angle?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Franklin placed a ping pong ball in a catapult, pulled the catapult's arm back to a 45° angle, and launched the ball. Then, Franklin launched another ping pong ball, this time pulling the catapult's arm back to a 30° an... | closed choice | grade8 | 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... | ||
Which animal's feet are also adapted for sticking to smooth surfaces? | [
"monitor lizard",
"Mediterranean tree frog"
] | 1 | s live in the forests of Madagascar. They spend most of their lives in trees. The feet of the are adapted to stick to the smooth surfaces of leaves and stems.
Figure: Madagascar day gecko. | 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.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the Madagascar day gecko.
The Madagascar day gecko has wide, sticky toes. Its feet are adapted for sticking to smooth surfaces. The Madagascar day gecko uses its toes to walk on the smooth surfaces of leaves without slipping.
Now look at each animal. Figure out which animal has a similar adaptati... | |
Identify the question that Lauren's experiment can best answer. | [
"Do slugs weigh more after eating tomato leaves or broccoli leaves?",
"Do slugs eat more from tomato leaves or broccoli leaves?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Lauren cut tomato and broccoli plant leaves into one-inch squares. In each of 12 containers, she placed six leaf squares: three tomato-leaf squares and three broccoli-leaf squares. She put one slug from her garden into ... | 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 | Select the gas. | [
"marbles",
"air inside a beach ball",
"pipe cleaner",
"baseball cap"
] | 1 | closed choice | grade3 | natural science | physics | States of matter | Identify solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | A baseball cap is a solid. A solid has a size and shape of its own. If you put a baseball cap on your head, the baseball cap will still have a size and shape of its own.
A pipe cleaner is a solid. You can easily bend a pipe cleaner. But it will still have a size and shape of its own.
A marble is a solid. A solid has a ... | |
Not supported with pagination yet | Complete the sentence.
Molding clay into the shape of a pot is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade2 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two ways matter can change.
In a chemical change, the type of matter changes.
Burning a piece of paper is a chemical change. The paper changes into ash and smoke.
In a physical change, the type of matter stays the same.
Cutting a piece of paper is a physical change. The cut pie... | Molding clay into the shape of a pot is a physical change. The clay gets a different shape. But it is made of the same type of matter. | |
Not supported with pagination yet | Which object has the most thermal energy? | [
"a metal paper clip at a temperature of 29°C",
"a metal paper clip at a temperature of 23°C",
"a metal paper clip at a temperature of 0°C"
] | 0 | 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 metal paper clips have the same mass but different temperatures. Since the 29°C paper clip is the hottest, it has the most thermal energy. |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Dr. Hunt,",
"Dear dr. hunt,"
] | 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 first greeting is correct:
Its first word is capitalized, and it ends with a comma. Dr. Hunt is capitalized because it is a proper noun. | |
Select the organism in the same species as the lion's mane jellyfish. | [
"Aequorea victoria",
"Cyanea capillata",
"Aurelia aurita"
] | 1 | This organism is a lion's mane jellyfish. Its scientific name is Cyanea capillata. | 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 lion's mane jellyfish's scientific name is Cyanea capillata.
Aurelia aurita does not have the same scientific name as a lion's mane jellyfish. So, Cyanea capillata and Aurelia aurita are not in the same species.
Aequorea victoria does not have the same scientific name as a lion's mane jellyfish. So, Cyanea capillata ... | |
Not supported with pagination yet | Which is a run-on sentence? | [
"The little boy popped a big bubble.",
"Emily just moved here, she's new to our country."
] | 1 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A run-on sentence is made up of two sentences that are joined without end punctuation or with just a comma.
I knocked on the door it opened.
It started raining, we ran inside.
To fix a run-on ... | Emily just moved here, she's new to our country is a run-on sentence. It has two sentences that are joined by just a comma: Emily just moved here and She's new to our country. | |
Which country is highlighted? | [
"Kiribati",
"Australia",
"New Zealand",
"Papua New Guinea"
] | 2 | closed choice | grade7 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is New Zealand. | |||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Henry had to stay home with his brother because he wasn't feeling well.",
"Henry's brother wasn't feeling well, so Henry had to stay home with him."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun he could refer to Henry or his brother.
Henry had to stay home with his brother because he wasn't feeling well.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is... | |
Not supported with pagination yet | Suppose John decides to take a trip to Kansas. Which result would be a cost? | [
"John will spend more money. Plane tickets for John to get to Kansas are more expensive than tickets to West Virginia.",
"John will enjoy his trip to Kansas more than he would have enjoyed a trip to West Virginia."
] | 0 | John is deciding whether to take a trip to Kansas or West Virginia. He wants to enjoy his trip. But he is also trying to save money. | 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 John wants or needs:
John will spend more money. Plane tickets for John to get to Kansas are more expensive than tickets to West Virginia. |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Dave gave a beautifully bound copy of his favorite book, One Hundred Years of Solitude, to Danny.",
"Dave gave Danny a beautifully bound copy of One Hundred Years of Solitude, which is his favorite book."
] | 1 | closed choice | grade10 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun his could refer to Dave or Danny.
Dave gave Danny a beautifully bound copy of One Hundred Years of Solitude, which is his favorite book.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritt... | |
Not supported with pagination yet | Would you find the word sang on a dictionary page with the following guide words?
sincere - sniff | [
"yes",
"no"
] | 1 | yes or no | grade3 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since sang is not between the guide words sincere - sniff, it would not be found on that page. | |
Which animal is also adapted to be camouflaged among green leaves? | [
"green silver-line",
"black widow spider"
] | 0 | Green mantises are insects found in tropical forests around the world. The is adapted to be camouflaged among green leaves.
Figure: green mantis. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the green mantis.
The green mantis has a green body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The green silver-line has a green body. It is adapted to be camouflaged among ... | |
Not supported with pagination yet | What is the temperature of the air on a warm, sunny day? | [
"27°C",
"27°F"
] | 0 | 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 the air on a warm, sunny day is 27°C.
27°F is too cold. |
Not supported with pagination yet | What is the temperature of a hot cup of tea? | [
"60°F",
"60°C"
] | 1 | Select the better estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Estimate temperatures | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units.
212°F | Water boils | 100°C
98.6°F | Body temperature | 37°C
68°F ... | The better estimate for the temperature of a hot cup of tea is 60°C.
60°F is too cold. |
Not supported with pagination yet | What do these two changes have in common?
chemicals in a battery reacting to power a flashlight
compost rotting | [
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are only physical changes."
] | 0 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Chemicals in a battery reacting to power a flashlight is a chemical change. When the flashlight is turned on, the chemicals in the battery react with each other to form new chemicals. This creates electricity, which powers the lightbulb.
Compost forms from the remains of plants and anim... | |
Not supported with pagination yet | How long is a human front tooth? | [
"10 kilometers",
"10 meters",
"10 centimeters",
"10 millimeters"
] | 3 | 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 human front tooth is 10 millimeters.
10 centimeters, 10 meters, and 10 kilometers are all too long. |
Not supported with pagination yet | Last year, there were seven men's clothing stores on Main Street in Bluepoint. This year, there are only three. What probably happened to the overall supply of men's shirts in Bluepoint? | [
"The supply probably went up.",
"The supply probably went down."
] | 1 | closed choice | grade5 | social science | economics | Supply and demand | Understand overall supply and demand | Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply.
| Resources | Number of producers or suppliers | Expected change in demand
Supply goe... | When four men's clothing stores closed on Main Street, the number of suppliers went down. There were fewer stores selling men's shirts. So, the supply of men's shirts probably went down. | |
Which country is highlighted? | [
"Solomon Islands",
"Tonga",
"Tuvalu",
"Samoa"
] | 1 | closed choice | grade7 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tonga. | |||
Not supported with pagination yet | Which sentence states a fact? | [
"Juan Ponce de León was an important person in American history.",
"Juan Ponce de León was the Spanish explorer who named Florida."
] | 1 | 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.
Juan Ponce de León was the Spanish explorer who named Florida.
It can be proved by reading about the history of Florida.
The second sentence states an opinion.
Juan Ponce de León was an important person in American history.
Important shows what a person believes, thinks, or feels. Anot... | |
Not supported with pagination yet | What information supports the conclusion that Laura acquired this trait? | [
"Laura learned how to knit in an after school program.",
"Laura knits sweaters using cotton, wool, and other types of yarn."
] | 0 | Read the description of a trait.
Laura knows how to knit sweaters. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Problems emerge and some people try to sweep them under the rug.
—Bill Condon, film director | [
"idiom",
"personification"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses an idiom, an expression that cannot be understood literally.
Sweep them under the rug means hide or ignore them. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Maria told her friends that Antonio was a typical Peter Pan type. | [
"literature",
"a song"
] | 0 | closed choice | grade7 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Peter Pan is literature.
In a J. M. Barrie novel, the character Peter Pan retreats to Neverland and refuses to grow up.
The allusion Peter Pan means a person who won't take on adult responsibilities. | |
What is the name of the colony shown? | [
"Georgia",
"Mississippi",
"Illinois",
"New York"
] | 0 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Georgia. | |||
Which country is highlighted? | [
"Grenada",
"Cuba",
"Jamaica",
"Saint Vincent and the Grenadines"
] | 2 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Jamaica. | |||
Select the organism in the same genus as the Japanese camellia. | [
"Camellia sasanqua",
"Trametes versicolor",
"Hyacinthus orientalis"
] | 0 | This organism is a Japanese camellia. Its scientific name is Camellia japonica. | 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 Japanese camellia's scientific name is Camellia japonica. The first word of its scientific name is Camellia.
Hyacinthus orientalis is in the genus Hyacinthus. The first word of its scientific name is Hyacinthus. So, Hyacinthus orientalis and Camellia japonica are not in the same genus.
Trametes versicolor is in the g... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"best regards,\nLara",
"Best regards,\nLara"
] | 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 continent is highlighted? | [
"North America",
"Europe",
"Antarctica",
"Australia"
] | 1 | closed choice | grade8 | social science | geography | Physical Geography | Oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Europe. | ||
Not supported with pagination yet | Select the animal that has a backbone. | [
"elephant",
"luna moth"
] | 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... | An elephant is a mammal. Like other mammals, an elephant has a backbone.
A luna moth is an insect. Like other insects, a luna moth does not have a backbone. It has a hard outer cover. |
Not supported with pagination yet | Which logical fallacy is used in the text?
Brandon, you drive a beat-up car from the 1980s. For this reason, we can never allow you to be a lifeguard at the community pool. | [
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"ad hominem: a personal attack against one's opponent"
] | 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 people who drive old cars are likely to be poor lifeguards. This is a personal attack that isn't relevant to someone's qualifications to be a lifeguard. This illustrates a type of logical fallacy known as ad hominem. | |
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. | |
Which of the following was a dependent variable in this experiment? | [
"the amount of light produced by the light bulb",
"the type of metal sheet used in the circuit"
] | 0 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Dominic designed an electric circuit to test how well different types of metal conduct electricity. The circuit included a battery, a light bulb, wires, and clips that could be attached to a sheet of metal. If... | 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 | Select the one animal that has all of the insect traits listed above. | [
"Many dung beetles roll dung, or animal waste, into balls using their six legs. They store the dung balls to eat later. Dung beetles also have an exoskeleton and one pair of antennae.",
"Banana slugs have a soft body with a flat underside called the foot. Slugs use their muscular foot to move. Banana slugs also h... | 0 | Insects are a group of animals with similar traits. The following traits can be used to identify insects:
They have six legs.
They have an exoskeleton.
They have one pair of antennae. 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.
Insects have the following traits:
They have six legs.
They have an exoskeleton.
They have one pair of antennae.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A dung beetle has ... |
Not supported with pagination yet | Which kind of place has more open space? | [
"a suburban area",
"a rural area"
] | 1 | closed choice | grade2 | social science | geography | Geography | Compare urban, suburban, and rural areas | People around the world live in three main kinds of places: urban areas, suburban areas, and rural areas.
An urban area is a city. It has many people and businesses. The buildings are close to each other. The buildings are often tall and have many floors. Since there are so many people, traffic is usually bad. People w... | Rural areas have more open space. There aren't as many people or buildings in a rural area. | |
Select the mammal below. | [
"Hermann's tortoise",
"fruit bat"
] | 1 | Mammals have hair or fur and feed their young milk. A sea otter is an example of a mammal. | 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 fruit bat is a mammal. It has hair and feeds its young milk.
A Hermann's tortoise is a reptile. It has scaly, waterproof skin. | |
What is the name of the colony shown? | [
"North Carolina",
"South Carolina",
"Connecticut",
"New Jersey"
] | 3 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Jersey. | |||
What is the capital of Alaska? | [
"Wichita",
"Fairbanks",
"Pierre",
"Juneau"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Juneau is the capital of Alaska. | |||
Not supported with pagination yet | What is the volume of a watering can? | [
"7 milliliters",
"7 liters"
] | 1 | 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 watering can is 7 liters.
7 milliliters is too little. |
Which bird's beak is also adapted to filter through mud? | [
"Canada goose",
"Alexandrine parakeet"
] | 0 | Northern pintails eat plants that grow underwater or in mud. The shape of the 's beak is adapted to filter through mud for food.
The gathers muddy water in its beak and then pushes it out through gaps along the sides. Bits of food, such as plant roots, are left behind inside the pintail's beak.
Figure: northern pintai... | closed choice | grade4 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of a bird's beak is one example of an adaptation. Birds' beaks can be adapted in different ways. For example, a sharp hooked beak might help a bird tear through meat easily. ... | Look at the picture of the northern pintail.
The northern pintail has a wide, flat beak. Its beak is adapted to filter through mud. The northern pintail gathers muddy water in its beak. Then, it pushes the water out through gaps along the sides of the beak. Bits of food, such as plant roots, are left behind inside the ... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Sandra, please stay away from the ocean. You shouldn't go in the water until you know how to swim. | [
"euphemism",
"paradox"
] | 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 a paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth.
You shouldn't go in the water until you know how to swim at first appears to be contradictory, because it is impossible to learn how to swim without going in the water. However, it contains some... | |
Which property matches this object? | [
"colorful",
"breakable"
] | 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 colorful object has one or more bright colors. The parachute is colorful.
A breakable object will break into pieces if you drop it. The parachute is not breakable. | |
What is the name of the colony shown? | [
"South Carolina",
"Florida",
"Maryland",
"Washington, D.C."
] | 2 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Maryland. | |||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"When Trent's computer wasn't working properly, he replaced the battery.",
"Trent replaced the battery in his computer when he noticed that it wasn't working properly."
] | 1 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun it could refer to the battery or the computer.
Trent replaced the battery in his computer when he noticed that it wasn't working properly.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewri... | |
Mature fern plants have flat leaves. What are fern leaves called? | [
"fronds",
"spore cases"
] | 0 | This diagram shows the life cycle of a fern. | closed choice | grade7 | natural science | biology | Plant reproduction | Moss and fern life cycles | Fern plants reproduce using both asexual reproduction and sexual reproduction.
Mature ferns have flat leaves called fronds. Ferns have structures that look like small dots on the underside of their fronds. These structures are called spore cases. The mature ferns use asexual reproduction to make spores. When the spore ... | Fern leaves are called fronds.
Spore cases are found on the underside of fronds. When a spore case breaks open, it releases the spores. | |
Not supported with pagination yet | Is a phone 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 phone is a good or a service, ask these questions:
Is a phone something you can touch? Yes.
Is a phone a job you might pay someone else to do? No.
So, a phone is a good. | |
Not supported with pagination yet | Select the one animal that has all of the bird traits listed above. | [
"American tree sparrows have a beak and lay eggs with shells. They have dark feathers on their wings and lighter feathers on other parts of their bodies. Male tree sparrows sing songs to attract mates.",
"Florida manatees have hairs on their bodies that are similar to whiskers. These hairs help the manatees feel ... | 0 | Birds are a group of animals with similar traits. The following traits can be used to identify birds:
They have feathers.
They have wings.
They have a beak.
They make eggs with shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Birds have the following traits:
They have feathers.
They have wings.
They have a beak.
They make eggs with shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
An American tre... |
Not supported with pagination yet | Which figure of speech is used in this text?
Now that I'm an adult, I love my job and work hard at it. But when I was younger, I was a little motivationally challenged. I just couldn't see the payoff that might come from hard work. | [
"paradox",
"euphemism"
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Motivationally challenged is an indirect way of saying lazy. | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Uncle tony,",
"Dear Uncle Tony,"
] | 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 first greeting is correct:
Its first word is capitalized, and it ends with a comma. Uncle Tony is capitalized because it is a proper noun. | |
Which property matches this object? | [
"rough",
"transparent"
] | 1 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
You can see clearly through a transparent object. The glass bowl is transparent.
A rough object feels scratchy when you touch it. The glass bowl is not rough. | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
"That fits you well," Percy remarked after Jill's cap fell over her eyes for the tenth time. | [
"The cap was a good fit.",
"The cap was too big."
] | 1 | closed choice | grade6 | 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.
Fits you well ironically suggests that the cap was too big. The cap was falling over Jill's eyes, so it didn't fit her well at all. | |
Which solution has a higher concentration of pink particles? | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | 2 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the 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.
... | |
Not supported with pagination yet | Which figure of speech is used in this text?
The spider skins lie on their sides, translucent and ragged, their legs drying in knots.
—Annie Dillard, Holy the Firm | [
"assonance",
"chiasmus"
] | 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 assonance, the repetition of a vowel sound in a series of nearby words.
The words spider, lie, sides and drying share a vowel sound. | |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"70°F",
"90°F",
"85°F"
] | 0 | closed choice | grade3 | natural science | units-and-measurement | Weather and climate | Read a thermometer | A thermometer is a tool that measures temperature. Temperature can be measured in degrees. The symbol for degrees is °.
Some thermometers measure temperature in degrees Fahrenheit (°F). Fahrenheit is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Fa... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid lines up with 70. So, the temperature is 70°F. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
In the wild, it's survival of the fittest. Therefore, we should promote fierce competition in school to separate the strong students from the weak. | [
"false dichotomy: an argument that presents only two choices when more options exist",
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"appeal to nature: the assumption that natural things are always good"
] | 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 schools should promote fierce competition among students because it is allegedly a feature of the natural environment. However, even if fierce competition is common in the wild, that does not necessarily mean it is good for students. This illustrates a type of logical fallacy known as an appeal to ... | |
Not supported with pagination yet | Which correctly shows the title of a short story? | [
"\"The Dream of Little Tuk\"",
"\"the Dream of little Tuk\""
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word of is not important, so it should not be capitalized.
The correct title is "The Dream of Little Tuk." | |
Which of these states is farthest east? | [
"South Dakota",
"Illinois",
"Kansas",
"Maine"
] | 3 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Maine is farthest east. | ||
Not supported with pagination yet | What is the mass of a bicycle? | [
"10 grams",
"10 kilograms"
] | 1 | 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 bicycle is 10 kilograms.
10 grams is too light. |
Which statement best describes the average monthly precipitation in Boston? | [
"About the same amount of precipitation falls each month between May and October.",
"March is the month with the highest average precipitation.",
"March is drier than January, February, and October."
] | 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 Boston, look at the graph.
Choice "Jan" is incorrect.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "May" is incorrect.
Choice "Oct" is incorrect.
Choice "March is drier than January, February, and October." is incorrect.
Drier months have a lower average p... | |
Not supported with pagination yet | Based on this information, what is Ace's phenotype for the horns trait? | [
"not having horns",
"having horns"
] | 1 | In a group of cows, some individuals have horns and others do not. In this group, the gene for the horns trait has two alleles. The allele for not having horns (H) is dominant over the allele for having horns (h).
Ace is a cow from this group. Ace has the homozygous genotype hh for the horns gene. | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | Ace's genotype for the horns gene is hh. Ace's genotype of hh has only h alleles. The h allele is for having horns. So, Ace's phenotype for the horns trait must be having horns.
To check this answer, consider whether Ace's alleles are dominant or recessive. The allele for not having horns (H) is dominant over the allel... |
Not supported with pagination yet | Compare the motion of two blue jays. Which blue jay was moving at a lower speed? | [
"a blue jay that moved 175kilometers in 5hours",
"a blue jay that moved 205kilometers 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 blue jay moved and the time it took to move that distance.
One blue jay moved 175 kilometers in 5 hours.
The other blue jay moved 205 kilometers in 5 hours.
Notice that each blue jay spent the same amount of time moving. The blue jay that moved 175 kilometers moved a shorter distance in that t... | |
Not supported with pagination yet | Which object has more thermal energy? | [
"a pot of spaghetti sauce at a temperature of 85°C",
"a pot of spaghetti sauce at a temperature of 45°C"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter move faster, the temperature goes up. The matter now has both ... | The two pots of spaghetti sauce have the same mass but different temperatures. Since the 85°C pot of spaghetti sauce is hotter than the 45°C pot of spaghetti sauce, it has more thermal energy. |
Not supported with pagination yet | Is this a sentence fragment?
With more than sixty percent of the popular vote, incumbent Lyndon Baines Johnson defeating Republican Barry Goldwater, Sr., in the 1964 presidential election. | [
"no",
"yes"
] | 1 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | This is a sentence fragment. It does not express a complete thought.
With more than sixty percent of the popular vote, incumbent Lyndon Baines Johnson defeating Republican Barry Goldwater, Sr., in the 1964 presidential election.
Here is one way to fix the sentence fragment:
With more than sixty percent of the popular v... | |
Not supported with pagination yet | How long is a sofa? | [
"9 inches",
"9 feet"
] | 1 | Select the better estimate. | closed choice | grade2 | 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.
Imagine being told that a pencil is 8 long. You might be thinking, 8 what? Is the pencil 8 inches long? 8 feet? 8 miles?
The number 8 on its own does not give you much information about the len... | The better estimate for the length of a sofa is 9 feet.
9 inches is too short. |
Not supported with pagination yet | Suppose Hannah decides to watch the action movie. Which result would be a cost? | [
"Hannah will get to watch a movie with her sister.",
"Hannah will give up the chance to watch the movie that she is more excited about."
] | 1 | Hannah 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. Hannah's sister will only watch an action movie. | closed choice | grade5 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Hannah wants or needs:
Hannah will give up the chance to watch the movie that she is more excited about. |
Which statement describes the Gobi Desert ecosystem? | [
"It has warm summers and mild winters.",
"It has year-round snow.",
"It has a small amount of rain or snow."
] | 2 | Figure: Gobi Desert.
The Gobi Desert is a cold desert ecosystem located in northern China and southern Mongolia. This desert is next to the Himalayan Mountains and used to be part of the Mongol Empire. | 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 cold desert is a type of ecosystem. Cold deserts have the following features: a small amount of rain or snow, dry, thin soil, and long, cold winters. So, the following statement describes the Gobi Desert ecosystem: a small amount of rain or snow, dry, thin soil, and long, cold winters. It has a small amount of rain o... | |
Not supported with pagination yet | Which object has more thermal energy? | [
"a 200-gram glass of apple juice at a temperature of 15°C",
"a 200-gram glass of apple juice at a temperature of 10°C"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter move faster, the temperature goes up. The matter now has both ... | The two glasses of apple juice have the same mass but different temperatures. Since the 15°C glass of apple juice is hotter than the 10°C glass of apple juice, it has more thermal energy. |
Not supported with pagination yet | Two fish tanks have the same temperature but different masses. Which fish tank has less thermal energy? | [
"the fish tank with more mass",
"the fish tank with less mass"
] | 1 | The objects are made of the same type of matter. | 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 fish tanks have the same temperature and are made of the same type of matter. So, the fish tank with less mass has less thermal energy. |
Not supported with pagination yet | Which figure of speech is used in this text?
Lindsey, I've told you a million times: you need to dry the dishes before you put them away. | [
"hyperbole",
"paradox"
] | 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 Lindsey has actually been told this a million times. | |
Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: windfarm off the coast of Denmark.
Wind turbines use energy from the wind to make electricity. These large turbines, located off the coast of Denmark, take advantage of the steady winds that blow here year-round.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of... | closed choice | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
Wind turbines use energy from the wind to make electricity. These large turbines, located off the coast of Denmark, take advantage of the steady winds that blow here year-round.
The underlined part of the passage tells you about the usual wind patterns in Denmark. This passage does not descr... | |
Which ocean is highlighted? | [
"the Indian Ocean",
"the Southern Ocean",
"the Atlantic Ocean",
"the Pacific 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 Southern Ocean.
The Southern Ocean reaches from the shores of Antarctica to 60° South latitude. | ||
Not supported with pagination yet | What is the volume of a teakettle? | [
"10 cups",
"10 gallons",
"10 fluid ounces"
] | 0 | 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 teakettle is 10 cups.
10 fluid ounces is too little and 10 gallons is too much. |
Not supported with pagination yet | What is the volume of a bowl of soup? | [
"265 liters",
"265 milliliters"
] | 1 | Select the better estimate. | closed choice | grade4 | 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 bowl of soup is 265 milliliters.
265 liters is too much. |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your Friend,\nKylie",
"Your friend,\nKylie"
] | 1 | closed choice | grade3 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Is babysitting a good or a service? | [
"a good",
"a service"
] | 1 | 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 babysitting is a good or a service, ask these questions:
Is babysitting something you can touch? No.
Is babysitting a job you might pay someone else to do? Yes.
So, babysitting is a service. | |
Which continent is highlighted? | [
"Australia",
"Europe",
"Africa",
"Antarctica"
] | 1 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Europe. |
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.