Across
- 4. weathered rock that also contains organic materials, based on where you live
- 5. breakdown of rocks by the repeated freezing and thawing of water
- 7. change in the chemical composition of a substance while being broken down
- 10. physical breakdown of material without changing the chemical composition
- 11. chemical reaction where materials react with oxygen in the atmosphere (rust)
Down
- 1. change in an object that does not change the identity of the object
- 2. average temperature and precipitation over a long period of time
- 3. the break down of rocks on or near the Earth's surface, into smaller segments
- 6. broken down pieces of rock
- 8. change in object that does change the identity of the object
- 9. reaction of carbon dioxide and water to form an acid