Chapter Introduction Lesson 1 Earth’s Atmosphere

Chapter Introduction

Lesson 1

Earth¡¯s

Atmosphere

Lesson 2

Energy

Transfer in

the Atmosphere

How does Earth¡¯s

atmosphere affect

life on Earth?

Earth¡¯s Atmosphere

? How did Earth¡¯s atmosphere form?

? What is Earth¡¯s atmosphere made of?

? What are the layers of the

atmosphere?

? How do air pressure and temperature

change as altitude increases?

Earth¡¯s Atmosphere

? atmosphere

? stratosphere

? water vapor

? ozone layer

? troposphere

? ionosphere

Importance of Earth¡¯s Atmosphere

? The atmosphere is a thin layer of gases

surrounding Earth.

? The atmosphere contains the oxygen

and water necessary for life on Earth.

? The atmosphere provides insulation

and helps keep temperatures on Earth

within a range in which living organisms

can survive.

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