"Earth's Interior"

Earth Revealed
(Annenberg/CPB)  

Geophysics and oil exploration help reveal the secrets of the Earth's interior structure.    (30:00) One-time, free registration may be required to view film.

By the conclusion of the video you should be able to:

• Describe how seismic waves are used to deduce the structure of the Earth's interior.

• Describe the three main layers of the Earth's interior structure.

• Compare and contrast the difference between ocean and continental crust.

• Describe how Earth's magnetic field is operates.

• Describe the different direct and indirect evidence used by geoscientists to determine the characteristics of Earth's interior.

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Activity Sheet