Across
- 5. man made material
- 6. used for construction
- 7. Made from heat and pressure
- 9. Elevated portion of the earth crust
- 11. Essential liquid
- 13. Common fossil fuel
- 14. A rupture in the crust
- 15. Injecting liquid at high pressures
- 18. A low area of land between hills or mountains
- 20. Naturally occurring inorganic material
Down
- 1. Tectonic plates moving
- 2. Made of sediment
- 3. Natural events
- 4. Study of rocks
- 8. A substance that reacts with another substance releasing energy
- 10. Petroleum
- 12. Natural fuel
- 16. The spit between tectonic plates
- 17. Magma rock
- 19. Precious stone