Across
- 3. breaks down rocks
- 5. moves rocks
- 7. big pieces of the earth's surface
- 11. a hill or mountain containing lava
- 12. hill or ridge formed by sand
- 13. release of energy in earth's crust
- 14. layer of rock between crust and core
- 15. deposited sediments
- 17. expansion and contraction
- 18. movement of soil and rock due to gravity
Down
- 1. inner most layer of earth
- 2. drops rocks
- 4. mass of earthy material that has fallen
- 6. when two plates divide
- 7. large waves caused by an earthquake
- 8. crack in the earth's surface
- 9. when two or more plates slide
- 10. broken down rocks
- 16. Formed by water dripping through rock
- 19. natural feature of earth's surface