Unit 3 Week 3 APP Test

Base the following questions on the passage, "Mysterious Mars."

This question has two parts. First, answer part A. Then, answer part B.

Part A: Read the sentence from the article.

It is a rocky planet that has valleys, hills, and plains.

The suffix -y means “full of.”

What does rocky tell about Mars?

• It has many lakes.

• It has many stones.

• It has many streams.

Part B:

Which other word uses the suffix -y like rocky?

• any

• lucky

• toy

Choose the main idea of the article that this detail supports:

Mars is like earth in some ways.

The main idea is:

• NASA has had many missions to Mars.

• Plants and animals cannot live on Mars.

• We still have a lot to learn about Mars.

Read the sentence from the article.

Now, most experts firmly believe that there was water on Mars long ago.

How do you feel if you firmly believe something?

• certain

• happy

• upset

Read the paragraph from the article. Scientists also know that Mars is very cold. The freezing temperatures would make it difficult for anything to live there. Also, large dust storms sweep across the surface of the planet. These storms may last for many months. Sometimes dust covers the whole planet. It dims the sun’s light. It would be hard for living things to breathe or see in such a dusty place. What is this paragraph mostly about?

• A) Cold and dust make it hard to live on Mars.

• B) Dust storms on Mars can dim the sun’s light.

• C) Dust storms on Mars can last for many months.

This question has two parts. First, answer part A. Then, answer part B.

Part A: What is NASA’s main job?

• to develop new spacecraft

• to find water on other planets

• to study soil from Mars

Part B: Which sentence from the article tells what NASA’s main job is?

• “This group is responsible for space travel and research.”

• “The pictures showed proof that scientists were right.”

• “They also wanted to know if any plants or animals had ever

  lived there.”

Base the following questions on the passage "Closest Star."

This question has two parts. First, answer part A. Then, answer part B.

Part A: What is the article mostly about?

• The sun is an ordinary star.

• A star is a ball of very hot gases.

• The sun is our nearest and most important star.

Part B: Which sentence from the article tells the main idea?

• A) "A tiny white light twinkles in the night sky."

• B) "The sun is a star of ordinary temperature and brightness."

• D) "Although the sun is an ordinary star, it is very important to Earth and life here."

Read the sentence from the article. Their light takes a very lengthy time to travel through space and reach Earth. The suffix -y means "full of." What does the word lengthy mean?

• difficult

• long

• slow