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chapter 3
lessons 1-3
| Term | Definition |
|---|---|
| erosion | The process by which water, ice, wind, or gravity moves weathered particles of rock and soil |
| sediment | small solid pieces of material that come from rocks or the remains of organisms; earth materials deposited by erosion |
| deposition | process in which sediment is deposited in new locations |
| gravity | The attractive force between objects; the force that attracts objects downhill |
| mass movement | Any one of several processes by which gravity moves sediment downhill |
| runoff | Water that flows over the ground surface rather than soaking into the ground |
| rill | A tiny groove in soil made by flowing water |
| gully | A large channel in solid that carries runoff in a storm |
| stream | A channel through which water is continuously running downhill |
| tributary | a stream or river that flows into a larger river |
| flood plain | The flat,wide area of land along a river |
| meander | A loop like bend in the course of a river |
| oxbow lake | A meander cut off from a river |
| delta | A land form made of sediment that is deposited where a river flows into an ocean or a lake |
| alluvial fan | A wide, sloping deposit of sediment formed where a stream leaves a mountain range |
| ground water | water that fills the cracks and spaces in underground soil and rock layers |
| stalactite | An icicle like structure that hangs from the ceiling of a cavern |
| stalagmite | A column like form that grown upward form the floor of a cavern |
| karst topography | A region in which a layer of limestone clos to the surface creates deep valleys, caverns, and sinkholes |
| glacier | Any large mass of ice that moves slowly over land |
| continental glacier | A glacier the covers most of a continent or large land |
| ice age | Time in earths history during which glaciers covered large parts of the surface |
| valley glacier | A long narrow glacier that forms when snow and ice build up in a mountain valley |
| plucking | The process by which a glacier picks up rocks as it flows over land |
| till | The sediments deposited directly by a glacier |
| moraine | A ridge formed by the till deposited at the edge of glacier |
| kettle | A small depression that forms when a chunk of ice is left in a glacial till |
Created by:
mwienclaw002