Chapter Introduction Lesson 1 The Structure of the Solar System

Chapter Introduction

Lesson 1 The Structure of the Solar System

Lesson 2 The Inner Planets

Lesson 3 The Outer Planets

NASA/JPL/USGS

Lesson 4 Dwarf Planets and Other Objects

Chapter Wrap-Up

What kinds of objects are in the solar system?

What do you think?

Before you begin, decide if you agree or disagree with each of these statements. As you view this presentation, see if you change your mind about any of the statements.

Do you agree or disagree?

1. Astronomers measure distances between space objects using astronomical units.

2. Gravitational force keeps planets in orbit around the Sun.

3. Earth is the only inner planet that has a moon.

Do you agree or disagree?

4. Venus is the hottest planet in the solar system.

5. The outer planets also are called the gas giants.

6. The atmospheres of Saturn and Jupiter are mainly water vapor.

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