Across
- 5. dig, expose rock under the surface
- 6. glaciers and mudslides
- 10. frost wedging
- 11. minerals dissolve and create holes
- 13. carbonic acid-created caves
Down
- 1. exfoliation-rocks temperature and pressure change
- 2. lichen or moss
- 3. repeated cycles of freezing and thawing
- 4. rocks composition and appearance change
- 7. oxidation-changes color-rust
- 8. rocks broken into smaller pieces
- 9. large roots cause pressure
- 12. breaking down by mechanical means