Across
- 2. black or brown rock found inside Earth and burned as fuel
- 4. a liquid that is found beneath Earth's surface that is processed as fuel
- 5. water soaks into a material, freezes, expands, and causes it to break or split apart
- 6. process of wind and water moving bits of rock, soil, and sand from one place to another
- 10. slow process that breaks material into smaller pieces.
- 11. natural resources that cannot be replaced by nature easily or quickly
- 12. nonmetal element used in computer chips and solar cells
- 13. soil worn away by wind and rain
- 16. dropping off of eroded soil, sand, and bits of rock
Down
- 1. large sheet of ice that moves slowly across the land
- 3. sedimentary rock formed from shells and animal remains
- 7. something that comes from nature
- 8. natural resources that can be replaced by nature easily or quickly
- 9. smooth rounded pebbles that are covered in particles of soil and rock that have broken off from larger rocks
- 14. a mixture of gases that is found beneath Earth's surface and used as fuel
- 15. chemical that is an important nutrient for all living things