Plate motion crossword

3. who created the Continental drift theory.
5. A slab of earths whistle sphere that moves across the earth.
6. The layer of solid brittle rocks that make up the earths surface.
8. The circular pattern of hot material rising and cool material sinking.
11. The direction of earths magnetic field.
12. The middle layer of earth made by hard rock that circulates by convection that is located between the crust and the core.
13. A two dimensional representation of a certain area on the earths surface.
16. Equipment that measures seismic waves and other motions.
17. Landmass above sea level.
18. The process of which something takes place.
20. was a geology professor and naval officer that would think about the continental drift theory and the unique features of the seafloor and he found out that mechanistic for it all.

1. when the north and south magnetic poles are the same as they are now.
2. Large ice sheets slowly moving.
4. polarity when the north and south magnetic poles are the reverse of what they are now.
7. what makes continents move.
9. molten rock deep inside the earth.
10. The movement of materials do two different temperatures.
14. Brown shaking caused in the release of energy stored in the crust.
15. The study of rocks processes and The history of earth.
19. The rocky outer layer of earths surface.