Plate Tectonics

3. A sudden shaking of Earth's surface caused by the motion of plates.
4. The process where the older, denser ocean floor plunges back into the interior of the Earth through a trench
6. A large section of hard, solid rock that makes up Earth’s outer layer
8. The country whose plate collided with Asia to form the Himalayan mountains
9. The general term for evidence of life from the past preserved in rock
11. The type of plate boundary where two plates move away from each other
12. Hot liquid rock found beneath the surface of the Earth.
15. The type of plate boundary where two plates are moving toward each other
17. The large mountain range, visible above water, formed underwater where two plates move apart
18. A long, deep indentation in the ocean floor formed when two plates move toward each other, resulting in subduction
19. The name of the scientist from Princeton who suggested the theory of seafloor spreading

1. The country located directly on the Mid-Atlantic Ridge where the divergent boundary can be seen on land
2. The soft, solid rock layer located beneath Earth’s plates on which they float
5. The name Alfred Wegener gave to the single giant land mass that once contained all the continents
7. The slow pulling apart of land caused by divergent plate movement.
10. How fast plate motion occurs, typically measured in centimeters per year
13. An extinct reptile fossil, unable to swim long distances, found on both South America and Africa
14. The meteorologist who proposed the initial theory of continental drift
16. Any of Earth's main continuous areas of land.