Across
- 1. The outer layers of rock peeling away and being replaced by layers of rocks below them'exfoliation'
- 5. The process
- 7. Animals dig/burrow into rocks and expose more rocks to the surface
- 8. Carbonic acid creates stalagtites and stalagmites in this process of chemical weathering
- 9. Reactions with oxygen
- 10. The process of breaking down by mechanical means
- 11. Repeated cycles of freezing and thawing (Ice wedging)
- 12. Chemical and Physical weathering are...
Down
- 2. Acidic rain that dissolves minerals
- 3. A rocks compostion/appearance changes
- 4. breaks rocks apart but doesn't change their composition
- 5. Roots add pressure to rocks and break the apart
- 6. Slighy acidic, and dissolve rock slowly, usually lichen and moss