Across
- 4. inorganic, occurs in nature, made of one substance
- 7. "fire" rocks
- 8. variables that changes in response
- 10. variable that doesn't change in an experiment
- 12. _____ change, the substance has also changed
- 14. rock warped by heat
- 15. remains or impression of ancient life
- 16. what you see, hear, feel, taste, or smell
- 17. continuous physical force
Down
- 1. small pieces of rock
- 2. rock found in layers
- 3. movement of sediment
- 5. how a model doesn't work
- 6. variable that you change
- 9. breaking down of rock
- 11. mix of remains, rock, and clay
- 13. _____ change, the substance remains the same
- 14. representation