Plate Tectonics

2. Sliding by each other
8. The process by which the ocean floor sinks into the mantle
10. A huge mass of ice and snow that moves slowly over the land
11. The center of the Earth
14. The process by which sediment settles out of the water or wind that is carrying it and is deposited in a new location
15. A German scientist that noticed that the continents were once connected
17. It is between the core and the crust
18. New crust is being made at the __________
21. The outer layer of the Earth

1. Pushing against each other
3. A device that scientists use to map the ocean floor
4. The super continent
5. There are 12 major _____
6. The rocks on either side of the fault slip past each other sideways, with little up or down motion
7. The process by which water, ice, wind or gravity moves fragments of rock and soil
9. A _________ has the same structure as a normal fault, but the blocks move in the opposite direction
12. Is the process that allows plates to be in motion
13. The physical or chemical process that breaks down rock at the earth's surface
16. Tension in Earth's crust pulls rock apart, causing a ________
19. Moving away from each other
20. A _______ often occur when transform plates slide past each other