Page 88 - Science Course 1 (Book 2)

The Earth Mo9-L1a: What are Earth’s systems?

Lesson 1

hydrosphere
the system containing all Earth’s water
In this topic, you will learn the following
lessons:
Mo.9 – L1a: What are the Earth’s System?
Mo.9 – L1b: What is the Atmosphere?

Mo.9 – L1c: What are the Hydrosphere and
Geosphere?

Mo9-L1a What are the Earth’s System?

KEY CONCEPTS:
1.What are Earth’s systems?
geosphere
the solid part of Earth

Vocabulary A-Z
Let us learn some vocabulary

biosphere
the Earth system that contains all living things

Let’s Begin

What is Earth?

Scientists divide Earth into systems to help them
better understand the planet.

atmosphere
a thin layer of gases surrounding Earth

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