Across
- 8. mechanically breaking down
- 9. a type of change that involves the cycle of water freezing and ice melting
- 10. reaction with acids in living things
- 11. expose rocks in earth's surface
- 12. a type of weathering that makes rocks have composition and appearance change
Down
- 1. reactions with oxygen
- 2. _____ of a plant add pressure against rocks
- 3. wind, water and gravity cause mudslides and ________
- 4. a type of change that causes exfoliation
- 5. a type of weathering that breaks down into smaller sediment
- 6. ________ acid happens when reactions with acids in a cave
- 7. ____ causes rock to slowly wear away