Across
- 1. the process of wind or water moving small pieces of rock, soil, and sand from one place to another
- 3. a rock that is formed deep below the Earth's surface
- 7. when igneous or sedimentary rocks are exposed to heat and pressure for a long time
- 8. a large sheet of ice that moves slowly across the land
- 10. soil and rock that have been broken off from larger rocks
- 13. a nonmetal element that is used in computer chips and solar cells
- 15. the slow process that breaks materials into smaller pieces
- 18. soil that is worn away by wind and rain
- 19. natural resources that can be replaced by nature easily or quickly (water or sunlight)
- 20. a black or brown rock that is found inside Earth and burned as fuel
Down
- 2. something that people use from nature
- 4. the dropping off of eroded soil, sand, and bits of rock
- 5. a solid, non-living substance found in rocks
- 6. a rock that is formed when small bits of materials are pressed together in layers
- 9. a mixture of gases found below Earth's surface that is used as fuel
- 11. a type of weathering that occurs when water soaks into a material, freezes, and causes the material to break or split apart
- 12. a chemical that is an important nutrient for all living things
- 14. a sedimentary rock formed mostly from shells and animal remains
- 16. natural resources that cannot be replaced by nature easily or quickly
- 17. a liquid that is found beneath Earth's surface