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Unit 2 Vocab
8th gr Science Vocabulary for Unit 2
Term | Definition |
---|---|
Delta | streams make it after depositing |
Floodplain | many levels of deposited material for flat land |
Gradient | measures of change in elevation |
Discharge | the amount of water a stream carries |
Load | materials carried by the stream |
Deposition | material dropped |
Erosion | material carried |
Alluvial Fan | fan shaped formed on dry land |
Groundwater | water under the ground |
Shoreline | where the water and beach meet |
Beach | area of shoreline where materiel is deposited |
Mudflow | when mud falls from a hill |
Landslide | sudden and rapid movement of a large amount of material |
Creep | when the land is slowly going down the hill |
Glacier drift | all materials carried by a glacier |
Loess | fine grained sediment |
Dunes | sand deposited by the wind in form to form a dune |
Deflation | removes top layer of fine sediment living behind rock fragments too heavy for the wind to carry |
Abrasion | grinding and wearing down of rock can happen in areas of strong winds, loose sand and soft rocks. |
SInkhole | Caused by underground water eroding away soft rock (sometimes forming a cave). When the water level changes, the ground gives way |