Across
- 2. An area of low land between hills or mountains
- 3. The outermost layer of Earth
- 4. The rapid, downhill movement of large amounts of rock, soil, and other material
- 7. A large mass of moving ice
- 8. A sudden shaking or trembling in Earth's crust
- 9. A deep, narrow valley with steep sides
- 11. The pulling force between two objects
- 13. A natural feature on Earth's surface
- 15. spot A place where magma has partially melted through Earth's crust
- 16. A break or crack in Earth's crust where two plates come together
Down
- 1. A great ocean wave that is more like a wall of water
- 2. A mountain that builds up around an opening in Earth's crust
- 5. An area of land caused by deposition at the mouth, or end, of a river
- 6. plates An extremely large, moving slab of rock that forms Earth's crust
- 9. A cup-like shape in the earth
- 10. dune A hill-like deposit of sand left behind by wind erosion
- 12. The flow of water over the banks of a body of water and across land
- 14. Land that becomes too full of water and slides down a slope