Across
- 3. the dropping of eroded sediment.
- 10. a hard sedimentary rock, used as building material and in the making of cement.
- 12. the breaking apart of rocks without changing their mineral composition.
- 15. the breaking down of rocks on Earth's surface.
- 16. the wearing away and moving of weathered rock and soil.
- 17. a ridge of sediment deposited by a glacier.
- 18. the layer of soil directly below the topsoil.
Down
- 1. a mixture of tiny pieces of weathered rock in the remains of plants and animals.
- 2. rocks that have gone through the process of weathering, where they are weakened and broken down.
- 4. process in which minerals combine with oxygen to form new substances.
- 5. soil and rock fragments.
- 6. an iron oxide, usually reddish-brown, formed by the reaction of iron and oxygen
- 7. the hard, solid rock beneath surface materials such as soil and gravel.
- 8. the breaking apart of rocks caused by a change in their chemical makeup.
- 9. fan-shaped area of land formed when sediment is deposited where a river empties into a lake or an ocean.
- 11. fan-shaped area of land deposited where a mountain stream moves on to flat land.
- 13. the top layer of soil, rich with remains of plants and animals.
- 14. a huge moving body of ice on land.