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• ES15 Telecourse
• Video 3 Questions
• The Earth's Interior

The following questions pertain to information contained in Video 3 "The Earth's Interior" in the Earth Revealed Series.  Please keep your answers as short and concise as possible.

1. The deepest wells on earth are located where?  How deep are they?
2. What is the definition of Geophysics?
3. What are seismic waves?
4. What are the two different types of crust on the earth?
5. Which type of crust is the most thick?
6. What are the two types of seismic waves?
7. Which wave types is the first to arrive at the seismic station?
8. Which wave types travels through solids, liquids and gases?
9. Why can't S-waves pass through the outer core of the earth?
10. Which has a greater impact on the tides of the earth, the sun or the moon?
11. What is paleomagnetism?
12. On average, how often does the magnetic field of the earth reverse?
13. When was the last magnetic reversal?

Video Questions

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