Page 203 - Science Course 3 (Book 2)

The Inner Planets Mo13-L2a: How are the Inner Planets
Similar?
Lesson 2

Crust

Mantle MERCURY
In this topic, you will learn the following
lessons: Core
Mo.13–L2a: How are the Inner Planets Similar?

Mo.13–L2b: What Makes Up the Atmosphere
of Inner Planets?

Crust
Mo13–L2a How are the Inner Planets Similar?

KEY CONCEPTS: VENUS Mantle
1. How are the inner planets similar? Core

Vocabulary A-Z

Let us learn some vocabulary

terrestrial planets Crust
are the Earth and the other inner planets—Mercury, Mantle
Venus, and Mars Mars
Core

(Mercury) (Jupiter)
Crust
EARTH Outer Core
Mantle

Inner Core

(Earth) (Mars)

Let’s Begin

The inner planets are roughly similar in size, with
Earth being about two and half times larger than
Planets Made of Rock Mercury.

Earth and the other inner planets—Mercury, Venus,
and Mars—are also called the terrestrial planets.

Like Earth, the other terrestrial planets are made of
rock and metallic materials and have a solid outer
layer.
VENUS MERCURY EARTH MARS
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