1. Layers of the Atmosphere
To use in conjunction with graph Activity

2. Directions PACKET IS DUE ON FRIDAY
Read through the layers. Summarize important information for each layer.
Color in the key for layer (see board).
Complete the graph.
Answer the analysis questions.

3. Graph USE THE CHECKLIST. DO IT IN PENCIL. You’ll make mistakes.
Need a title and Axis Labels with units.
X = Temperature (ºF)
Y= Altitude (miles)
For the X Axis, each line will represent 30 ºF  Start at on the left, end with 710 on the right
Make sure you have everything stated in the directions.

4. Layers Exosphere Thermosphere Mesosphere Stratosphere Troposphere

5. In between are the pauses
Pauses mark the upper limit of the layer
Tropopause
Stratopause
Mesopause
Thermopause

6. Troposphere Layer closest to Earth
Heat here is due to the IR released from the Earth
Weather & 99% of water vapor seen here
Most dense layer
Ends in the Tropopause

7. Stratosphere 2nd layer  starts at the tropopause
Airplanes & weather balloons found here
Ozone Layer is in the stratosphere
Protects us from UV rays (cause cancer)
Ends with Stratopause

9. Mesosphere
Strat
Troposphere

11. Mesosphere 3rd Layer from Earth Meteors burn up in this layer
Due to the friction between the air molecules and the meteor
Ionosphere starts here (made of ions)
Ends in Mesopause

12. NOCTILUCENT CLOUDS

13. Thermosphere 4th Layer Low density& thin air
Space satellites orbit here
Very hot here  a lot of UV is absorbed
Where we find the Aurora Borealis (Northern Lights)

14. Aurora Borealis/Australis
Charged solar particles react with the O2, N2 in the atmosphere  Found over the poles of the Earth

15. Ionosphere- bounces radio waves around - Made of ions (charged particles) - From the sun splitting atoms

16. Exosphere Extremely low density (particles far apart)  air is thin
Gradually fades into outer space
No exopause
Made mostly of Helium (He) and Hydrogen (H)

17. Let’s go over the graph and the analysis questions.