What
When &
Where
Why
How
1

What is Mars?

The fourth planet from the Sun.

1

Where can you find out topic sentences?

Usually the 1st or the last sentence, sometimes the 2nd sentence.


1

Why did the author write the text?

The author's purpose is to inform.

1

How can you quickly find out the main idea of a paragraph?

Read the topic sentence.

2

What is section title?

It tells what a section of text is mostly about.

2

Where is Mars?

It's the fourth planet from the Sun, and next to Earth in the solar system.

2

Why is it called the Red Planet?

The surface is covered by iron oxide, a mineral which is red in color.

2

How do you find out the author's purpose?

I read a lot of facts and information.

3

According to the "Introduction" section, what are the issues we're currently facing?

1. Earth is getting crowded as the human population grows.
2. We're running out of resources.

3

When did the Curiosity rover land on Mars?

In 2012.

3

Why is Mars unlivable so far?

1. Only a small amount of liquid water has been found.
2. Much coder than Earth.
3. There is very little oxygen for humans to breathe.

3

How is Mars similar to Earth?

They both contain water and have a layer of air surrounding them.

4

What is the Curiosity rover?

It is a robotic motor vehicle that roams the surface of Mars.

4

Where can you meet Martians?

Movies, imagination, and dreams.

4

Why do they use the Curiosity rover to study Mars?

It can move on the surface of Mars.
It can find out what the rock is made of.
It has a built-in power source, which produce electricity to run the vehicle.
It sends data back to Earth, which enables scientists to see Mars.

4

How do scientists study Mars?

They use the Curiosity rover to explore, take pictures, videos, and soil samples, look for sign of life, and send data back to Earth.

5

What can you do to solve the problems we're facing?

Open-ended question.
Answers will vary.

5

When can we move on Mars?

Maybe in the future.
Maybe never.

5

Why do they think humans could live in greenhouse?

Living in a greenhouse would help us by providing water and oxygen.
To provide for energy needs, we can build a power source using solar panels or a nuclear plant.

5

According to scientists, how could humans live on Mars?

They thought we can live in a greenhouse.

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