| A | B |
|---|
| erosion | The process by which natural forces move weathered rock and soil from place to place |
| sediment | The material that is moved by erosion. |
| deposition | When the agents of erosion, deposit, or lay down sediment |
| gravity | Force that pulls everything toward the center of the earth |
| mass movement | Types of movement that move sedimant downhill. |
| runoff | Water that moves over earth's surface |
| rill | Run off that forms tiny grooves in the soil. |
| gully | Large groove or channel in the soil that carries runoff after a rain storm. |
| stream | A channel along which water is continually flowing down a slope. |
| tributary | A stream or river that flows into a larger river. |
| flood plain | Flat wide area of land along a river. |
| meander | a loop like bend in the course of a river. |
| oxbow | A menader that has been cut off from the river. |
| alluvial fan | A wide sloping deposit of sediment formed where a stream leaves a mountain range. |
| delta | Where a river flows into an ocean or a lake and builds up a landform of sediment. |
| groundwater | Water from rain fall or snow melting that fills the cracks between rock layers under the ground. |
| stalactite | Calcite deposits that hang like icicles from the roof of the cave. |
| stalagmite | Calcite that is slow dripping forms cones on a cave floor. |
| karast topography | A depression called a sink hole |
| energy | Ability to do work or cause change |
| potential energy | Enegery that is stored and waiting to be used. |
| kinetic energy | Energy an object has due to its motion. |
| abrasion | The wearing away of rock by a grinding action. |
| load | Sediment that a river carries |
| friction | The force that opposes the motion of one surface as it moves across another surface. |
| turbulence | Type of movement of water that moves every which way |
| glacier | Large mass of ice that moves slowly over land |
| continental glacier | A glacier that covers a large part of a continent or large island. |
| valley glacier | A long narrow glacier that forms when snow and ice build up high in a mountain valley. |
| ice ages | In the past when continental glaciers have covered large parts of Earth's surface. |
| plucking | As a glacier moves past it picks up rocks |
| till | A mixture of sediments a glacier deposits directly on the surface. |
| moraine | Till deposited at the end of a glacier. |
| kettle | A small depression that forms when a chunk of of ice was left in a glacial till. |
| longshore drift | The process in which beach sediment moves down a beach with the current |
| beach | An area of wave-washed sediment along a coast |
| sand dune | A deposit of wind blown sand |
| deflation | The process by which wind removes surface materials. |
| loess | Fine wind-deposited sediment |
