Across
- 3. broken up pieces of Earth's crust
- 6. the remains of an organism
- 8. caused by plate movement; shakes earth
- 9. natural ridges in the middle of the ocean
- 10. a supercontinent; all the continents in one
Down
- 1. the layer under the lithosphere
- 2. when a plate melts (gets recycled) and becomes molten rock
- 4. Earth's outermost layer
- 5. person who first thought of the theory of plate tectonics
- 7. made up of the mantle and crust of earth