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earth science 2
| Term | Definition |
|---|---|
| Decomposition | when something that is dead goes through a chemical process and it breaks down into the soil making the soil much richer |
| soil | the upper layer of Earth consisting of a mixture of organic remains, rocks and clay particles |
| gravel | smaller stones, pebbles of rock, no water stays, no nutrients |
| particles | very small in size, tiny, a speck, crumb |
| retain | to keep in or hold back |
| sediment | particles of matter could be sand, silt, shell and other substances that are carried then deposited |
| sand | tiny particles of broken down rock, about the size of salt, loses water, no nutrients |
| silt | finer and softer sand, like flour, silky smooth, slippery when wet |
| clay | a sticky when wet, fine grained soil that does not allow water to flow through easily |
| humus | dark and chunky soil full of organic matter and plants, sticks and leaves |
| loam | the best soil of all because it's a mixture of humus, clay, and sand |
| Delta | created by the deposition of sediment. opens at the mouth of streams and rivers |
Created by:
erin.mcpherson2
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