Common Core: 4th Grade English Language Arts : Identify the Theme and Main Idea

Study concepts, example questions & explanations for Common Core: 4th Grade English Language Arts

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Example Questions

Example Question #1 : Identify The Theme And Main Idea

Adapted from "From a Railway Carriage" in A Child's Garden of Verses by Robert Louis Stevenson (1885)

Faster than fairies, faster than witches,
Bridges and houses, hedges and ditches;
And charging along like troops in a battle,
All through the meadows the horses and cattle:
All of the sights of the hill and the plain
Fly as thick as driving rain;
And ever again, in the wink of an eye,
Painted stations whistle by.

Here is a child who clambers and scrambles,
All by himself and gathering brambles;
Here is a tramp who stands and gazes;
And there is the green for stringing the daisies!
Here is a cart run away in the road
Lumping along with man and load;
And here is a mill and there is a river:
Each a glimpse and gone for ever!

 

- - - - - - - - - - - - - - - - - -

 

Adapted from "Snow Dust" by Robert Frost in The Yale Review (January, 1921)

The way a crow
Shook down on me
The dust of snow
From a hemlock tree

Has given my heart
A change of mood
And saved some part
Of a day I had rued.

The poem "From a Railway Carriage" primarily consists of which of the following?

Possible Answers:

Description of all of the different people and things riding on a train the narrator is on

An extended visual description of a train

An argument about why train travel is the best form of transportation

Descriptions of the things the narrator sees quickly passing by

A story about how the narrator prepared to go on a train trip, what he or she saw, and how he or she returned home afterward

Correct answer:

Descriptions of the things the narrator sees quickly passing by

Explanation:

Let's use process of elimination to answer this question. By looking at each of the answer choices and identifying the ones that are not correct, we can eventually narrow down our options to one remaining answer choice which will have to be the correct one.

"An argument about why train travel is the best form of transportation" - This poem isn't argumentative at all; it is descriptive. It doesn't try to convince the reader that any particular opinion or viewpoint is correct.

"A story about how the narrator prepared to go on a train trip, what he or she saw, and how he or she returned home afterward" - While the poem does have to do with trains, it doesn't tell a story about a train trip the narrator took. We never learn anything about how the narrator prepared to go on this trip or how he or she returned home afterward.

The remaining three answer choices all state that the poem is describing something. This is correct, so let's figure out which one of the answer choices is correct.

"An extended visual description of a train" - The poem is about trains, but it's not describing a train. It describes many different people and things.

Now we have two answer choices left. They differ on one point: is the poem describing "all of the different people and things riding on a train the narrator is on"? Or is it describing "the things the narrator sees quickly passing by"? Notice how the poem talks about "Bridges and houses, hedges and ditches" in line 2, "All through the meadows the horses and cattle" in line 4, and "Here is a cart run away in the road" in line 13. None of these things can be loaded onto a train and transported that way; the narrator is describing the things he or she can quickly glimpse while riding on the train. The poem's title supports this conclusion: the poem is made up of descriptions of things the narrator can see "From a Railway Carriage." So, the best answer is "Descriptions of the things the narrator sees quickly passing by".

Example Question #2 : Identify The Theme And Main Idea

Passage 1: Adapted from "The Busy Blue Jay" in True Bird Stories from My Notebooks by Olive Thorne Miller (1903). 
The following passage is from a book in which the author talks about raising and releasing into the wild birds that had been captured and sold as pets. 

One of the most interesting birds who ever lived in my Bird Room was a blue jay named Jakie. He was full of business from morning till night, scarcely ever a moment still.

Jays are very active birds, and being shut up in a room, my blue jay had to find things to do, to keep himself busy. If he had been allowed to grow up out of doors, he would have found plenty to do, planting acorns and nuts, nesting, and bringing up families. Sometimes the things he did in the house were what we call mischief because they annoy us, such as hammering the woodwork to pieces, tearing bits out of the leaves of books, working holes in chair seats, or pounding a cardboard box to pieces. But how is a poor little bird to know what is mischief?

One of Jakie’s amusements was dancing across the back of a tall chair, taking funny little steps, coming down hard, “jouncing” his body, and whistling as loud as he could. He would keep up this funny performance as long as anybody would stand before him and pretend to dance, too.

My jay was fond of a sensation. One of his dearest bits of fun was to drive the birds into a panic. This he did by flying furiously around the room, feathers rustling, and squawking as loud as he could. He usually managed to fly just over the head of each bird, and as he came like a catapult, every one flew before him, so that in a minute the room was full of birds flying madly about trying to get out of his way. This gave him great pleasure.

Wild blue jays, too, like to stir up their neighbors. A friend told me of a small party of blue jays that she saw playing this kind of a joke on a flock of birds of several kinds. These birds were gathering the cherries on the top branches of a big cherry tree. The jays sat quietly on another tree till the cherry-eaters were busy eating. Then suddenly the mischievous blue rogues would all rise together and fly at them, as my pet did at the birds in the room. It had the same effect on the wild birds; they all flew in a panic. Then the joking jays would return to their tree and wait till their victims forgot their fear and came straggling back to the cherries, when they repeated the fun.

Which of the following best summarizes the passage?

Possible Answers:

The author explains in detail the circumstances that led to her raising and releasing wild birds.

The author compares and contrasts the blue jay with other kinds of birds.

The author describes the behavior of a blue jay she kept as a pet.   

The author explains why blue jays are her favorite birds.

Correct answer:

The author describes the behavior of a blue jay she kept as a pet.   

Explanation:

To summarize a passage, a statement must relate to each part of it in some capacity. It can't be too specific, or it won't relate to each paragraph. It also can't be too general; if a lot of other topics could be described by the statement besides those that the passage talks about, the statement is probably not a good summary. Of course, statements that summarize the passage have to also be accurate to what is stated in the passage. With these things in mind, let's look at this question's answer choices.

"The author compares and contrasts the blue jay with other kinds of birds." - The author only talks about blue jays in this passage, so this statement isn't a good summary of the passage.

"The author explains why blue jays are her favorite birds." - The author talks about blue jays in the passage, but she never claims that blue jays are her favorite bird. This isn't the correct answer.

"The author explains in detail the circumstances that led to her raising and releasing wild birds." - This answer isn't correct. The author never explains how she came to raise and release wild birds.

"The author describes the behavior of a blue jay she kept as a pet." - This is the correct answer! In this passage, the author relates some of the things that a blue jay she kept in her bird room did—in other words, she describes the blue jay's behavior.

Example Question #17 : Reading

Passage and table adapted from "Why Leaves Change Color" on "Northeastern Area," a website by the USDA Forest Service. <https://www.na.fs.fed.us/fhp/pubs/leaves/leaves.shtm>.

There are two main types of trees: coniferous trees and deciduous trees. Coniferous trees have small, needle-like leaves. They keep these leaves all year. One example of a coniferous tree is a pine tree, which has green needles during all seasons. In contrast, deciduous trees lose their leaves every autumn. Before these leaves drop and blow away, they change from green to colors like red, orange, yellow, and brown.

Have you ever wondered why deciduous leaves change color in the fall? This color change is caused by a chemical process in the cells of tree leaves.

Green leaves are green because they contain a green molecule, chlorophyll. This is a very important molecule in the natural world. Leaves use this molecule to turn carbon dioxide, sunlight, and water into sugar and oxygen in a process called “photosynthesis.” So, chlorophyll lets the plant store energy as sugar, which it can use as food. It also lets the plant provide food for anything that eats it, like a cow, a bird, or even a human! 

So, what does chlorophyll, a green molecule, have to do with autumn leaf colors? Deciduous leaves also contain molecules of other colors, but the chlorophyll in the leaves covers them up in the summer. In the fall, deciduous trees stop making chlorophyll. Eventually there is no more chlorophyll in their leaves. The colors of the other molecules show through. The colors of these other molecules are the colors we see in autumn leaves. The next time you see colorful leaves in the fall, you’ll know more about the chemistry at work!

Which of the following statements best states the main idea of this passage?

Possible Answers:

Deciduous trees' leaves change color in the fall because a balance of colorful molecules in them changes.

Coniferous trees are very different from deciduous trees.

Photosynthesis is a process that is crucial to nature.

Deciduous trees' leaves are green in the summer because of chlorophyll, a green molecule.

Correct answer:

Deciduous trees' leaves change color in the fall because a balance of colorful molecules in them changes.

Explanation:

When figuring out the main idea of a passage, it is important to make sure that the statement relates to each part of the passage. The correct answer will need to have something to do with each paragraph. Let's look at each of the answer choices and figure out which one is best.

"Coniferous trees are very different from deciduous trees." - This is the main idea of the first paragraph of the passage, but this statement doesn't have anything to do with the concepts discussed in the second, third, or fourth paragraphs of the passage. It isn't the best statement of the main idea of the entire passage, so it's not the correct answer.

"Photosynthesis is a process that is crucial to nature." - The second paragraph of the passage talks about photosynthesis as a process that is very important in nature, but photosynthesis isn't mentioned in the first paragraph, the third paragraph, or the fourth paragraph. This sentence isn't the best statement of the entire passage's main idea, so it's not correct.

"Deciduous trees' leaves are green in the summer because of chlorophyll, a green molecule." - This sentence mentions deciduous trees' leaves specifically, so it has something to do with the passage's first paragraph. It also talks about chlorophyll, which is discussed in the passage's third paragraph. It doesn't talk about how deciduous leaves change color in the fall, though, which is the main topic of the second and fourth paragraphs. So, this isn't the best answer.

"Deciduous trees' leaves change color in the fall because a balance of colorful molecules in them changes." - This is the correct answer! This answer choice mentions deciduous leaves, relating to the topic of the first paragraph. It then talks about the source of their color change in the fall, the topic of the rest of the passage. It mentions "a balance of colorful molecules," so it relates to the discussion of chlorophyll in paragraph 3. 

Example Question #3 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

What sentence best shows the main idea of passage 1?

Possible Answers:

“Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction.”

“ Amphibians are in trouble because their habitat is being destroyed as trees are being cut down to make room for farms and roads”

“Amphibians are animals that spend part of their life in water and part on land, and have backbones”

“Scientists are working to save amphibians from their plight.”

Correct answer:

“Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction.”

Explanation:

This is the best choice because it covers the majority of what the article talks about.

 

Example Question #4 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

Which sentence shows evidence that supports the main idea of passage 1?

Possible Answers:

“Amphibians are in trouble because their habitat is being destroyed as trees are being cut down to make room for farms and roads.”

“Ecuador, in South America, is home to 417 types of frogs and toads”

“Salamanders, frogs, and toads are all amphibians.”

“Scientists want the government to pass laws that protect amphibian habitats and limit pollution.” 

Correct answer:

“Amphibians are in trouble because their habitat is being destroyed as trees are being cut down to make room for farms and roads.”

Explanation:

This is the best choice to defend the main idea of the article, which is that frogs are at risk because of pollution and habitat destruction.

 

Example Question #5 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

What sentence from passage 1 best supports the idea that frogs are amphibians?

Possible Answers:

“Salamanders, frogs, and toads are all amphibians”

“ Amphibians are in trouble because their habitat is being destroyed”

“Many amphibian species have gone extinct.”

“Amphibians must live near water.”

Correct answer:

“Salamanders, frogs, and toads are all amphibians”

Explanation:

This choice clearly articulates that frogs are amphibians.

 

Example Question #2 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

 What sentence from passage 1 best supports the idea that amphibians are at risk from pollution?

Possible Answers:

“Frogs with deformed body parts are a clue for scientists that an environment is suffering.”

“Amphibians also absorb pollution easily, because they breathe through their skin”

“Amphibians also absorb pollution easily, because they breathe through their skin.”

“In the last 50 years, many amphibian species have gone extinct.”

Correct answer:

“Amphibians also absorb pollution easily, because they breathe through their skin.”

Explanation:

While all four sentences discuss amphibians, this choice best supports the idea that frogs are vulnerable to pollution.

 

Example Question #7 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

 What is the theme of passage 1?

Possible Answers:

Frogs are amphibians

Frogs are at risk for extinction

Scientists are working to save frogs

There are many types of frogs in Ecuador

Correct answer:

Frogs are at risk for extinction

Explanation:

Remembering that theme is the message the author is trying to tell you, the theme of this article is that frogs are at risk. 

 

Example Question #8 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

 Choose the sentence from passage 1 that does NOT directly support the main idea of the passage:

Possible Answers:

“Amphibians are usually the first to disappear when an environment is under threat from pollution.”

“Ecuador, in South America, is home to 417 types of frogs and toads”

“Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction.” 

“Amphibians are in trouble because their habitat is being destroyed.”

Correct answer:

“Ecuador, in South America, is home to 417 types of frogs and toads”

Explanation:

This sentence provides information, but it is not direct evidence of the main idea: that frogs are at risk from environmental threats. 

 

Example Question #9 : Identify The Theme And Main Idea

Passage One

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibian habitats can be found in forests, woodlots, meadows, springs, wetlands, streams, rivers, lakes, ponds, bogs, marshes. Frogs and toads are in trouble because their habitats are being destroyed as trees are being cut down to make room for farms and roads. Wetland spaces where frogs live are being drained and paved over. As these spaces are removed, the places frogs, toads, and salamanders can live shrink. 

Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. Scientists are working to save amphibians. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage Two

My name is Maria and I am an amphibian conservation biologist. This means I am a scientist who studies and protects frogs, toads, and salamanders.  My job is to protect amphibians and their natural habitats, share this knowledge with the public,  and research ways to help reintroduce frogs in captivity back into the wild. I have the best job in the world.  I work in a zoo, but I often travel to places like Brazil to observe amphibians in their natural habitats in the wild. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats, or homes, were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws that protect diverse wildlife. She, in turn, needs to partner with government workers to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build a safe wild space for amphibians to be released from the zoo and into a space where they can thrive. The new habitat will be a protected wetland for these amphibians.

What sentence best describes the main idea of Passage 2? 

Possible Answers:

Conservation biologists travel for work

Being a conservation biologist is a fun job

It takes many types of workers to protect and conserve amphibian habitats

Scientists are alone in their work to protect frogs

Correct answer:

It takes many types of workers to protect and conserve amphibian habitats

Explanation:

While you can infer that conservation biologists might have a fun job, or that they travel for work, the passage describes several occupations working together to protect amphibians. 

 

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