Chapter 5

3. A mountain that forms in Earth's crust when molten material reaches the surface
5. Mountain ranges that form along the sea floor
6. The transfer of heat through movement of fluid
8. The scientist that came up with one of the first ideas of Pangaea
10. The idea that the continents slowly moved over Earth
12. Where plates move toward each other
13. The major pieces of Earth separated by cracks
14. Where plates move apart
15. The continuous land masses of Earth (there are 7)
18. The process where material continues to be added to the ocean floor
20. A deep valley that forms when two plates diverge on land

1. The process by which the ocean floor sinks back into the mantle
2. The flow that transfers heat inside of a fluid
4. the middle layer of Earth
7. A valley under the water where subduction occurs
9. The theory that states that Earth's plates are in slow, constant motion, driven by convection currents in the mantle
11. Where plates move past each other
16. A super continent that existed 200-300 million years ago
17. Any trace of an ancient organism that has been preserved in rock
19. Breaks in the crust where rocks have moved past each other