Across
- 2. The process by which water, ice, wind, or gravity moves weathered rock or soil.
- 4. Soil organism that breaks down the remains of organisms and digests them
- 7. a fan-shaped mass of alluvium deposited as the flow of a river decreases in velocity.
- 8. Time in the past when continental glaciers covered large parts of Earth's surface
- 9. A chemical change in which a substance combines with oxygen.
- 10. The area of the great plains in the US where wind erosion caused soil loss during the 1930'S
- 12. The chemical and physical process that breaks down rock at Earth's surfaces.
- 13. A force that moves rocks and other materials toward each other
- 15. The management of soil to prevent its destruction
- 16. Dark colored organic matter in soil.
- 18. The process in which sediment is laid down in new locations
- 21. The process that breaks rock down through chemical processes.
- 23. Mixture of humus, clay, and other minerals that form the top most layer of soil.
- 24. A land form that is made of sediment that is deposited where a river flows into an ocean or lake
- 27. A large mass of moving ice and snow on land
Down
- 1. Characteristics of a material that is fully of tiny, connected air spaces where water can seep through
- 3. The type of weathering in which rock is physically broken down into smaller pieces.
- 5. Water that flows over the ground surface rather than soaking into the ground
- 6. Water fills the cracks and spaces in underground soil and rock layers
- 11. Wave washed sediment along coast
- 14. plain A wide valley through which a river flows
- 15. Small, solid pieces of material that come from rocks or organisms
- 17. A loop like bend in the course of a river
- 19. A channel through which water is constantly flowing downhill
- 20. The solid layer of rock beneath the soil.
- 22. A stream or smaller river that feeds into a main river
- 25. A large channel in soft soil formed by erosion
- 26. The loose, weathered material on Earth's surface where plants grow.