Page 211 - Science Course 3 (Book 2)

The Outer Planets Mo13-L3a: How are the Outer Planets
Similar?
Lesson 3

These gas giants generally have gas and liquid
layers around a small solid core.

In this topic, you will learn the following
lessons:
Mo.13–L3a: How are the Outer Planets Similar?

Mo.13–L3b: What are the Outer Planets Made
Of?

Mo13–L2a How are the Outer Planets Similar?

KEY CONCEPTS:
1. How are the outer planets similar?
2. Describe what makes up each of Jupiter’s three
distinct layers.
JUPITER SATURN URANUS NEPTUNE

Vocabulary A-Z THE OUTER PLANETS

Let us learn some vocabulary The outer planets are large compared to the inner
planets. The size of Earth is shown for reference.

Galilean moons
the four largest of Jupiter’s 63 moons, discovered by
Galileo (Jupiter, Europa, Ganymede, and Callisto)

Key Concept

How are the Outer Planets Similar?

How are the outer planets similar?

Let’s Begin

The Gas Giants

The outer planets, also known as the gas giants, are
primarily made of hydrogen and helium.

The outer planets are extremely massive. They apply
strong gravitational forces.

The interiors of the outer planets are mainly liquid.

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