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Earth's Interior

Terms to learn:

continental crust     core                               isostasy

oceanic crust          lithosphere                     MOHO                       

asthenosphere       geothermal gradient        S-wave shadow zone

mantle                                    

                       

Topic outline:

  1. Earth's internal structure
    1. Chemical division
    2. Physical division
  2. Isostasy
  3. Earth's magnetism
    1. Magnetic reversals
  4. Internal heat and pressure
    1. geothermal gradient
    2. pressure

 

Fun places to visit:

Earth's interior and plate tectonics: http://library.thinkquest.org/17457/platetectonics/1.php

Rock Doctor view of the earth's interior: http://www.cobweb.net/~bug2/rock7.htm

 

When you are finished with this topic, you should be able to answer these study questions:

  1. What are the internal layers of the earth?
  2. What causes the internal layered structure of the earth?
  3. What do seismic-wave shadow zones tell us about the earth's interior?
  4. What is the temperature distribution with depth in the earth?
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