Across
- 2. cannot be used and can be replaced
- 6. breaking down of rock
- 7. can be used up and not replaced
- 9. make something new from something old
- 11. keep from going away
- 13. dropping off of rock
- 14. a rocks ability to absorb water
Down
- 1. the color of rock obtained by rubbing it
- 3. the way light reflect off the surface
- 4. a rocks way to prevent scratching
- 5. the idea of protecting natural resources
- 8. movement of rock
- 10. a natural feature on Earths surface
- 12. fuels oil, coal, and natural gas