Unit 7 Earth's Atmosphere

Open Ended

What is the atmosphere and what does it do?

Open Ended

List two things that the atmosphere does.

Multiple Choice

The Ozone Layer is formed from

• nitrogen

• oxygen

• hydrogen

• helium

Multiple Choice

Oxygen makes up about ___ of the total gases in Earth's atmosphere.

• 0.3%

• 21%

• 72%

• 100%

Open Ended

What do clouds contain?

Multiple Choice

Which layer is the closest to the Earth's surface?

• troposphere

• stratosphere

• mesosphere

• thermosphere

• exosphere

Multiple Choice

There are __ layers of the atmosphere.

• 3

• 4

• 5

• 6

Multiple Choice

How far does the troposphere extend above Earth's surface?

• 0-10 km

• 0-50 km

• 0-75 km

• 0-100 km

Multiple Choice

Which layer contains the Ozone Layer?

• troposphere

• stratosphere

• mesosphere

• thermosphere

• exosphere

Open Ended

Why do meteors burn up in this layer of the atmosphere?

Open Ended

Name one thing located in this layer of the atmsophere.

Open Ended

What is air pressure?

Open Ended

What does the ozone layer do?