The Atmosphere

1
The Atmosphere

• Layers of the Atmosphere
• Chapter 1
• Section 4

2
Earths Atmosphere

• Four Main Layers
• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

3
Troposphere

• 1st layer of atmosphere
• 0 to 6 miles up
• Gets colder as you go higher

• All weather occurs here
• Contains almost all of Earths gases

4
Stratosphere

• 2nd layer of atmosphere
• 6 to 30 miles up
• Gets warmer as you go higher

• Ozone Layer, O3
• Absorbs Ultra Violet light from sun

5
Mesosphere

• 3rd layer of atmosphere
• 30 to 50 miles up
• Gets colder as you go higher

• Meteorites burn up
• shooting star

6
Thermosphere

• 4th layer of atmosphere
• 50 to space miles up
• Gets hotter as you go higher
• Up to 1800 oC
• Melts steel

• Contains
• Ionosphere
• Exosphere

7
Ionosphere

• Suns energy cause gas particle to be come
  electrically charged
• We can bounce radio wave off of them

• Aurora borealis
• Aurora australis

8
Exosphere

• Exo outer
• Transition to space

• Satellites orbit here
• Phones
• Television