Across
- 3. A natural shape on Earth's surface
- 5. A large amount of water that covers normally
- 8. The movement of weathered rock and soil
- 9. An opening in Earth's surface from which lava
- 11. The shaking of Earth's surface caused by mo
- 12. A wide, flat area on Earth's surface
Down
- 1. A valley with steep
- 2. The breaking down of rocks into smaller pieces
- 4. A flat area higher than the land around it
- 6. A huge sheet or block of ice
- 7. A place on Earth's surface that is much higher
- 10. A low area between higher lands such as mount