Across
- 5. gases surrounding Earth
- 6. hot fluids
- 8. how fast something happens
- 10. living organisms
- 11. all water on earth
- 12. evidence of life from the past
- 13. the layer of soft solid rock
- 15. the ground of earth
- 16. earths main area of land
Down
- 1. Matter that settles at the bottom of a liquid
- 2. very large solid hard pice of rock
- 3. hot liquid rock
- 4. the outer layer of earth
- 7. the study of rocks
- 9. a sudden shaking in the earth
- 14. along deep indention in the ocean floor