1. Physical Properties of the Atmosphere
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2. Atmospheric Pressure Force exerted on a surface
Drops as altitude increases
Weight 
Millibar- unit for Atmospheric Pressure
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3. EXOSPHERE
THERMOSPHERE
MESOSPHERE
STRATOSPHERE
TROPOSPHERE

4. Troposphere 1st Layer 78% nitrogen & 21% oxygen
Thickness: 8 km to 20 km
99% - Water vapor  
Temperature: decrease/altitude
Less dense
Atmospheric pressure millibars millibars
We’re living in it
Picture references
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MILLIBAR- UNIT FOR ATMOSPHERIC PRESSURE

5. Stratosphere 2nd Layer Thickness: 12 to 50 km Temperature: Very Stable
Less air turbulence
No clouds, no weather
Advantages for long-distant flight
Atmospheric Pressure: 100 millibars - 10 millibars 
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6. Mesosphere 3rd Layer 78% nitrogen & 21% oxygen
Thickness: 50 km to 85 km
Drop with increasing altitude to about -100°C
Coldest layer
Freeze water vapor into ice clouds
Meteors burn up
Dark blue layer
0.01 millibar
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7. Thermosphere 4th Layer 78% nitrogen & 21% oxygen
Thickness: 90 km- 500 km & 1,000 km
“Heat sphere"
80% nitrogen & 20% oxygen
Temperature rise- 1000°C
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8. Ionosphere Not a layer Upper Part of the Thermosphere.
Thickness: 80 km to 600 km
Aurora occurs
Ultraviolet radiation from the Sun
Atmospheric Pressure- 600 millibars
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9. Aurora High-energy particles – Sun Solar wind - Ionosphere
Electrically charged particles converted to light
Earth's magnetic field
Greenish; sometimes red, pink etc.
Strength of Solar wind
Aurora Borealis - Nothern Hemisphere
Aurora Australis - Southern Hemisphere
Antarctica, Greenland, Iceland etc.

10. Exosphere 5th Layer Thickness: 10,000 km
Upper limit of our atmosphere.
Hydrogen & Helium - extremely low densities.
Satellites orbit the Earth
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11. Sources: Images earthspacecircle.blogspot.com apod.nasa.gov
References:
Video
Maciej Winiarczyk