Unit 3 Week 3

The MAIN idea of the article is.....

• Mars is very similar to Earth.

• NASA has had many missions to Mars.

• plants and animals cannot survive on Mars.

• scientist still have a lot to learn about Mars.

Read this sentence from the article:

After all, it is close to Earth and can be easily seen with a telescope.

The word easily means "done with ease". What is an example of something done "noisily"?

• a parade

• studying for a test.

• a trip to the library

• taking a tour of a museum

Read this sentence from the article:

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

To firmly believe something means you are...

• angry about it.

• happy about it.

• certain about it.

• confused about it.

What is the MAIN idea of the 3rd paragraph on page 145?

• Dust storms on Mars can dim the sun's light.

• Mars is the coldest planet in the solar system.

• Dust storms on Mars can last for many months.

• The freezing temperatures on Mars make life difficult for living things.

Read this sentence from the article:

It would be hard for living things to breathe or see in such a dusty place.

The suffix --y means "full of". Which answer choice uses --y in the same way as dusty?

• any

• chunky

• factory

• toy

The MAIN responsibility if NASA is to....

• study rocks and soil from Mars.

• study the weather patterns of Mars.

• research and develop new spacecraft.

• discover if water exists on other planets.

Read this sentence from the article:

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

The suffix -y means "full of." A rocky hill is one that contains many...

• bumps

• ponds

• streams

• trees

Read these sentences from the article:

With the Mars Polar Lander gone, NASA had to go back to the drawing board. It ended up sending 2 robots to Mars in 2004.

What does "go back to the drawing board" mean?

• to give up

• to plan ahead

• to begin again

• to sketch maps

Which of the following details would BEST support the MAIN idea of the 3rd paragraph on page 146?

• The robots picked up soil and rocks.

• NASA sent 2 robots to Mars in 2004.

• NASA tested materials to see what they were made of.

• The robots' mission was to move around and take photographs.

Which text evidence BEST shows that the author believes the Mars exploration will be successful?

• The first spacecraft flew to Mars in 1975.

• They also wanted to know if any plants or animals had ever lived there.

• With the Mars Polar Lander gone, NASA had to go back to the drawing board.

• Spirit and Opportunity have collected many details about this mysterious planet.