Weathering and Soil Crossword

2. Layer of rock beneath the soil
6. The process in which sediment is picked up and moved from one place to another
7. the amount of open space between an object
8. The make up of soil describing the minerals or elements present in it
10. A soil layer with physical and chemical properties that differ from those of the soil layers above or below
12. Break down or decomposition of rock that takes place when minerals change through chemical processes
13. The expansion of desert condition in an area where the natural plant cover has been destroyed
14. The process by which rain water dissolves and carries away minerals and nutrients in topsoil
15. The ability to let water pass though
17. The process by which natural forces break down rocks and soil

1. The top layer of soil that contains humus
3. The process in which transported sediment is laid down
4. The process of wearing something down by friction
5. The breakdown of rock into smaller pieces of the same material without any damage to its composition
9. The process in which layers or sheets of rock gradually break off
11. A chemical reaction in which an element combines with oxygen to form an oxide
16. The size, shape, and position of the particles of soil
18. The decaying organic matter in soil