Across
- 4. the bumping and rubbing of rocks to break them apart
- 6. made up of pebbles,sand,clay,and gravel
- 7. the settling of sediments
Down
- 1. when floods wash rocks down a mountainside
- 2. the process of large rocks breaking down to form smaller rocks
- 3. the carrying away of weathered material by water, wind or ice
- 5. dead plant and animal material in soil