Congratulations! You’re now an expert on the atmosphere, right? Well, there’s always more to learn, and the atmosphere is no exception.

In your video lesson, you learned that the atmosphere is divided into five distinct layers based on temperature. From the top down, they are:

  • Exosphere
  • Thermosphere
  • Mesosphere
  • Stratosphere
  • Troposphere

… as in the diagram to the right.

Well guess what? There are other ways to slice and dice the envelope of air surrounding Earth. You are hereby challenged to research online other ways scientists might define Earth's atmospheric layers.

When you've completed your research, draw a diagram of Earth’s atmospheric layers that uses a standard other than temperature.

Here are some key words and links to help you on your quest. Be sure to put key word phrases in quotes.

Key words

Layers of the atmosphere
atmospheric layers
ionosphere
magnetosphere
homosphere
heterosphere
chemosphere
tropopause
stratopause

Links

http://royal.okanagan.bc.ca/mpidwirn/atmosphereandclimate/atmslayers.html
http://www.doc.mmu.ac.uk/aric/eae/Atmosphere/Older/Atmospheric_Layers.html
http://www.bartleby.com/65/at/atmosphe.html
http://davem2.cotf.edu/ete/modules/msese/tchnotes/tch_atmos.html
http://www.research.umbc.edu/~tokay/chapter1.html
http://www.eas.slu.edu/People/ATokay/chapter1.html
http://snowball.millersv.edu/~course/107/topic1.htm
http://www.sciencemadesimple.com/sky_blue.html