LAYERS OF THE ATMOSPHERE

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

THE TROPOSPHERE

• This is the lowest layer and the layer that we live in
• This is where all of earth's weather occurs
• This layer varies from 16km to 9km around the poles
• Every km you go up the temperature increases by about 6.5'C

THE STRATOSPHERE

• It extends about 50km over the earth
• The upper stratosphere is surprisingly warmer that the lower.
• The stratosphere is the layer that contains the ozone.
• The stratosphere stops ultraviolet radiation so it doesn't harm living things

THE MESOSPHERE

• It starts at 50km and ends at 80km
• The mesosphere stops meteors from hitting the ground
• In the outer mesosphere temperatures approach about 90'C

THE THERMOSPHERE

• It extends outward at 80km to space
• This layer is where the Northern Lights are formed in Fairbanks Alaska
• The air in the Thermosphere is 1,800'C but the molecules are so spread out so it feels like 0'C

THE END