Science

5. change in which a substance combines oxegen, as when iron oxidizes, forming rust
8. weathering/type of weathering in which rock is physically broken into smaller pieces
9. conservation/managment of soil to prevent its destruction
10. that moves rock and other materials downhill the force that pulls objects toward each other
11. process by which water, ice, or wind, or gravity moves weatherd rock or soil
12. off/water that flows over the ground surface rather than soaking into the ground
13. solid pieces of mateerial that comes from rock organisims; earth materials deposited by eroision

1. in which sediment is laid down in new
2. that breaks down the remin of organisims and digest them
3. of a material that is full of tiny, connected air spaces that water can seep through
4. weathering/process that breaks down rock through chemical changes
6. bowl/area of the great plains where wind erosion caused soil loss during the 1930's
7. weathered material on earth's surface in which plants can grow
14. soil/mixture of humus, clay, and other minerals that forms the crumgly, topmost layer os soil