Across
- 4. inorganic substance
- 5. being worn from exposure to the atmosphere
- 7. lava
- 10. remains or impression of a prehistoric plant or animal
- 11. rocks relocate
- 12. being compressed
- 15. outer layer of the earth
- 18. valuable mineral
Down
- 1. the third rock in the rock cycle
- 2. lava erupting through the earths crust
- 3. searching for ores
- 6. movement of the environment
- 8. melts to turn into magma
- 9. opposite to heat
- 13. nature
- 14. formed from magma
- 16. solid mineral
- 17. the cycle of the rocks