Across
- 2. moving or shifting of smaller pieces of broken rock by natural forces, such as wind, water, or ice
- 3. breaking down rocks by factors of Earth's environment such as pressure, temperature, water, and ice
- 5. weathering caused by plants growing in the cracks of a rock - roots spread the crack until the rock breaks
- 8. when sediments are deposited (dropped off) in a different location
- 9. wearing down of rock particles by friction due to water or wind or ice
Down
- 1. breaking down rocks though some sort of chemical reaction
- 4. water in a little crack in a rock; the water freezes and makes the crack even bigger when it expands and turns to ice
- 6. rain consisting of water droplets that are acidic due to the polluted atmosphere
- 7. the process when oxygen combines with an element, changing the element
- 9. an underground layer where the material contains water