Across
- 2. this weathering changes rocks into new substances
- 6. decayed organic material found in soil
- 7. a fertile soil that has equal parts of sand and silt combined with about half as much clay
- 8. a person who likes to explore caves
- 9. the process of breaking down rocks
- 11. unweathered rock that influences the soil above it
- 13. the sediment that a stream carries
- 15. small particles of weathered rocks and minerals
- 18. the process of rock changing from one type to another
- 19. the primary force behind erosion
- 20. a cave formation that builds on the floor of a cave
Down
- 1. the dropping of sediment and rocks in a new location
- 3. occurs whenever rocks rub against each other
- 4. produced when carbon dioxide dissolves in water
- 5. an area of sediment deposited at the mouth of a river
- 8. contains weathered minerals and some nutrients from the humus
- 10. the amount of each kind of particle in a soil sample
- 12. the process of wind picking up loose sediment and carrying it away
- 14. scientist who studies soil
- 15. the largest kind of particle in soil
- 16. a cave formation that hangs from the ceiling of a cave
- 17. layers of soil
- 19. forms when unmelted snow gets compacted down into ice