Across
- 5. low land between mountains or hills
- 6. a large thick sheet of moving ice
- 9. earths outer layer
- 10. much higher than the surrounding land
- 11. a mountain made of cooled lava
- 14. liquid metals at earths center
- 16. shaking of earth
- 17. streams rivers or lakes too full and over flow
- 18. flat ground
Down
- 1. under the crust
- 2. a bunch of mud sliding down caused by lots of water
- 3. higher than land around it
- 4. soil rocks or sand are moved by water
- 7. breaking down of rock
- 8. a ball of solid metals at earths center
- 12. certain shape formed naturally
- 13. fan shaped area of land where a river splits
- 15. valley with steep sides