Across
- 2. the breaking down of rock that also gets carried.
- 6. weathering that changes the object composition
- 7. wearing away of rocks
- 8. when ice gets in between rocks.
- 9. a material with a lot of air holes so water can enter in
Down
- 1. breaking down an object
- 3. when oxygen rusts or changes the chemical structure of objects
- 4. weathering that physically changes the appearance of the object
- 5. the principle that geological things happing know can be explored in the past.