Plate Tectonics

2. There is approximately 12 major ______
3. A huge mass of ice and snow that moves slowly over the land
5. A deep valley along the ocean floor
7. The process by which molten material adds new oceanic crust to the ocean floor
12. A supercontinent
13. A large steep hill.
16. The layer of rock that forms Earth's outer surface
17. Sliding by each other
18. _______ is where new ocean floor is produced
20. Opposite of a normal fault

1. The process that breaks down rock at the earth's surface
4. The ______ is between the crust and core
6. ___________ happens when continents slowly move across Earth's surface
8. The rocks on either side of the fault slip past each other sideways, with little up or down motion
9. __________ often occur when transform plates slide past each other
10. Moving away from each other
11. Tension in Earth's crust pulls rock apart, causing _______
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. The center of the earth
19. Pushing against or going toward each other
21. Moves fragments of rock and soil