1. Earth’s Atmosphere http://app.discoveryeducation.com/player/vi ew/assetGuid/795D88AC-CDC6-4538- 9A46-8AE2D4D222BB

2. Troposphere  Lowest layer 6-10 miles high  We live in this layer  6-10 miles from Earth  Weather, wind, clouds, Jet stream Jet stream

3. Stratosphere  10-30 miles high  Includes ozone layer to protect life  Slows radiation  Higher temperature than troposphere troposphere

4. Mesosphere  30 to 50 miles high  Colder than Stratosphere  Meteors disintegrate in this layer this layer

5. Thermosphere  50-350 miles high, thin ozone layer  2000 degrees C.  Also called Ionosphere, atoms have electrical atoms have electrical charges. charges.

6. Ionosphere - Exosphere  350 to 400 miles high. Unstable molecules escape into space where our satellites orbit the Earth

7. The Big Picture  Why do we care that the earth has different layers?  http://www.youtube.com/watch?v=AkaY1dv Zer4 http://www.youtube.com/watch?v=AkaY1dv Zer4 http://www.youtube.com/watch?v=AkaY1dv Zer4  http://academic.cengage.com/biology/discipl ine_content/animations/sun_to_earth.html http://academic.cengage.com/biology/discipl ine_content/animations/sun_to_earth.html http://academic.cengage.com/biology/discipl ine_content/animations/sun_to_earth.html

8. Convection  Convection is the transfer of heat by the actual movement of the heated material.  Convection Currents are what causes weather

9. Resource/Exploration Five Layers : http://earthguide.ucsd.edu/earthguide/diagrams/at mosphere/index.html http://www.srh.noaa.gov/jetstream/atmos/layers.ht m

10. Resource/Exploration  Convection: http://uccpbank.k12hsn.org/courses/APEnvir onmentalScience/course%20files/multimedi a/lesson21/animations/2d_Air_Movement.ht ml http://uccpbank.k12hsn.org/courses/APEnvir onmentalScience/course%20files/multimedi a/lesson21/animations/2d_Air_Movement.ht ml http://uccpbank.k12hsn.org/courses/APEnvir onmentalScience/course%20files/multimedi a/lesson21/animations/2d_Air_Movement.ht ml