Soil
Across
- 5. the amount of each kind of particle in a soil sample
- 7. decayed organic material found in soil
- 8. a pile of rocks and soil deposited by a glacier
- 9. the largest kind of particle in soil
- 11. the ____ cycle; changing from one type to another
- 13. the sediment that a stream carries
- 15. an area of sediment deposited at the mouth of a river
- 18. the dropping of sediment and rocks in a new location
- 19. a type of erosion caused by gravity; a mass movement
- 22. occurs whenever rocks rub against each other
Down
- 1. a fertile soil with equal parts of sand and silt with about half as much clay
- 2. contains weathered minerals and some nutrients from the humus
- 3. unweathered rock that influences the soil above it
- 4. the process of breaking down rocks
- 6. ______ weathering; changes rocks into new substances
- 10. the process of wind picking up loose sediment and carrying it away
- 12. depositions look _______ because sediment falls according to weight
- 14. the movement of weathered material from one place to another
- 16. small particles of weathered rocks and minerals
- 17. layers of soil
- 20. unmelted snow that gets compacted down into ice
- 21. the primary force behind erosion