Plate+Tectonics+Review

Plate Tectonics Review
1. What is a theory? 2. Continental Drift, Alfred Wegener’s theory, is different than the theory of Plate Tectonics, how? 3. Where do earthquakes form most often and why? 4. Where do you find most volcanic activity taking place, why? 5. What are the two types of tectonic plates? 6. Roughly how much do the tectonic plates move each year? 7. What were Wegener’s proofs that the continents did indeed move and were once connected? 8. Describe the different layers of the earth’s surface (name and describe).