Across
- 4. - ice expands in cracks as it freezes, this is called frost _______
- 7. - physical weathering is also called ________ weathering
- 8. - movement of sediment to another place
- 9. - water mixes with pollutant gases to form __________ rain
Down
- 1. - sand dunes are an example of _____________
- 2. - onion skin weathering is caused by changes in _______________
- 3. - biological weathering is caused by living ________
- 4. - rocks are broken into smaller pieces called ____
- 5. - when wind and water scrapes away rocks slowly
- 6. - when a rock changes its mineral makeup, it is called _______ change