Plate Tectonics
Across
- 3. crust The outer layer of the earth
- 7. A number of crustal plates
- 11. The shaking wave like movement of the ground in an earthquake
- 13. A place where extremely hot material from inside the earth erupts at the surface
- 14. A long narrow trench in the ocean.
- 15. An opening made by a splitting, cleaving etc
Down
- 1. Two plates colliding and making one plate
- 2. crust The crust that forms the ocean floor
- 3. drift The continents on earth moving around
- 4. molten rock that has erupted onto earths surface
- 5. An underwater earthquake that makes the wave so powerful it smashes through buildings
- 6. molten rock below earths surface
- 8. The rapid movement of the ground usually back and forth and up and down in a wave motion due to the movement of tectonic plates
- 9. An instrument that detects the seismic waves from an earthquake.
- 10. spreading A process in which a new ocean floor is created
- 12. The point on the earths surface directly above the focus of an earthquake