Plate Tectonics

7. Lighter, older, and more buoyant of the two types of tectonic plates.
9. Pieces of the Earth’s crust the shift and move.
12. American geologist who proposed seafloor spreading as a mechanism for Plate Tectonics.
16. Where two plates push into each other.
18. Partially molten layer of the Earth that facilitates.
19. The provider of heat for the mantle which drives plate tectonics.
20. Outer layer of Earth’s geosphere, composed of the crust and outer mantle.

1. A shaking of the ground caused by plate interactions.
2. Younger, denser, and less buoyant of the two types of tectonic plates.
3. The process by which two continental plates split apart and form a new ocean.
4. A chain of mountains and underwater volcanoes where new oceanic plate forms.
5. A deep, narrow depression in the seafloor formed around subduction zones.
6. The process where one plate sinks under another and melts into the Mantle.
8. Where two plates pull apart.
10. Where two plates slide past one another.
11. The hard outermost layer of the Earth. Like the edges of bread.
13. German meteorologist and geophysicist that proposed the theory of Continental Drift.
14. Heat transfer method; when material rises and falls based off of temperature.
15. The movement of the tectonic plates across the surface of the Earth, the formation and destruction of these plates, and the natural phenomena these processes cause.
17. Valley formed from continental rifting.