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unit 8
| Term | Definition |
|---|---|
| weathering | The natural processes by which atmospheric and environmental agents such as wind rain and temperature changes disintegrated and decompose rocks |
| physical weathering | the mechanical breakdown of rocks into smaller pieces that is caused by natural processes and that dose not change the chemical composition of the rock material |
| abrasion | the process by which rock is reduced in size by the scraping action of other rocks driven by water wind and gravity |
| chemical weathering | The chemical breakdown and decomposition of rocks by natural processes in the environment |
| oxidation | a chemical reaction in which a material combines with oxygen to from new material in geology oxidation is a from of chemical weathering |
| erosion | The process by which wind water ice or gravity transports soil and sediment from one location to another |
| deposition | the process in which material is laid down |
| floodplain | An area along a river that forms sediments deposited when river overflows its banks |
| delta | a mass of material deposited in a triangular or fan shape at the mouth of a triangular or fan shape at the mouth of a river or stream |
| alluvial fan | a fan shaped mass of rock material deposited by a stream when the slope of the land decreases sharply |
| groundwater | the water that is beneath Earth's surface |
| shoreline | The boundary between land and a body of water |
| beach | An area of the shoreline that is made up of deposited sediment. |
| sandbar | A low ridge of sand deposited along the shore of a lake or sea. |
| barrier island | A long ridge of sand or narrow island that lies parallel to the shore |
| dune | A mound of wind deosited sand that moves as a result of action of wind |
| loess | fine grained sediments of quartz feldspar hornblende mica and clay deposited by the wind |
| glacier | a large mass of ice that exists year round and moves over land |
| glacier drift | the rock material carried and deposited by glaciers |
| creep | the slow downhill movement of weathered rock material |
| rockfall | the rapid mass movement of rock down s steep slope or cliff |
| landslide | the sudden movement of rock and soil down a slope |
| mud flow | the flow of a mass of mud or rock and soil mixed with a large amount of water |
| mountain | an area of significantly increases elevation of Earth's surface usually rising to a summit |
| lake | a filled or partially filled basin of fresh or salt water surrounded by land |
| river | a large natural stream of water that flows across land surface within a channel |
| coastline | a location where land and ocean surface meet |
Created by:
McKenna Melit ;)
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