Page 208 - Science Course 3 (Book 2)

Mo13-L2: Vocabulary Review

Direction: On each line, write the term from the word bank that correctly completes each sentence.
NOTE: You may need to change a term to its plural form.

Earth greenhouse effect Mars Mercury
terrestrial planet Venus

1. Earth, Mars, Mercury, and Venus are .

2. is the closest planet to the Sun and has no atmosphere.

3. has an atmosphere made of water vapor and gases.

4. The occurs when a planet’s atmosphere traps solar energy and
causes the surface temperature to increase.

5. is about the same size as Earth.

6. has soil that contains iron oxide, which makes its surface appear reddish in
color.

Mo13-L2: Key Concept Organizer

Direction: Complete the chart by answering each question in the space provided.

Planet Facts Question
1 Why doesn’t Mercury have an atmosphere?

2
Mercury
3

4 Why is Venus the hottest planet in the solar system?

5
Venus
6

7 What factors enable life to exist on Earth?

8
Earth
9

10 What causes great dust storms on Mars that last for
months?
11
Mars
12

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