Unit 3: The Atmosphere

First layer of the atmosphere

• troposphere

• mesoshphere

• exosphere

• stratosphere

Second layer of the atmosphere

• thermosphere

• mesosphere

• exosphere

• stratosphere

Third layer of the atmosphere

• mesosphere

• stratosphere

• exosphere

• thermosphere

Fourth layer of the atmosphere

• troposphere

• thermosphere

• stratosphere

• exosphere

Fifth layer of the atmosphere

• troposphere

• mesosphere

• stratosphere

• exosphere

Coldest layer

• troposphere

• mesosphere

• thermosphere

• exosphere

Hottest layer

• troposphere

• thermosphere

• stratosphere

• exosphere

Layer where planes fly

• troposphere

• stratosphere

• mesosphere

• thermosphere

Layer where auroras occur

• exopshere

• stratosphere

• mesosphere

• thermosphere

Layer where weather occurs

• exosphere

• stratosphere

• troposphere

• mesosphere