| Term | Definition |
|---|
| mineral | naturally occurring inorganic solid that forms on or beneath Earth's surface |
| weathering | the process that breaks down rock into sediment |
| mechanical weathering | weathering where rock is physically broken down(ice wedging, abrasion...) |
| chemical weathering | weathering where rock is broken down by chemical changes (by water, oxygen, acid rain,) |
| sediment | small pieces of material that come from rock or living things |
| soil | the loose, weathered material on Earth's surface where plants grow |
| bedrock | the solid layer of rock beneath the soil |
| humus | the dark substance that forms when plants and animals decompose |
| permeable | full of tiny spaces through which water can seep through |
| erosion | the movement of sediment by wind, water, ice or gravity |
| watershed | a river system and all of the land that drains into it |
| deposition | the process by which sediment is laid down |
| decomposers | organisms that break the remains of dead organisms to form humus |
Combine with other sets
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