| A | B |
|---|
| erosion | process where products of weathering are moved from one place to another |
| deposition | process by which sediments are laid down in a new location |
| mass wasting | downhill movement of sediments due to gravity |
| sand dune | mound of sand depositied by the wind |
| loess | accumulations of fine particles of sand and silt deposited by the wind |
| load | amount of sediment carried by a stream |
| drainage system | network of streams and other bodies of running water that finally drain into an area's main river |
| tributary | large stream or small river that flows into an area's main river |
| drainage basin | area drained by a major river |
| immature river | river in an early stage of development, fast with rapids |
| mature river | river that has been developing for thousands of years, slower and winding |
| meander | a loop in a river |
| oxbow lake | U-shaped lake formed when erosion and deposition cut off a meander of a river |
| alluvial fan | fan-shaped deposits of sediments formed a the place where a river flows out of a mountain and onto a plain |
| delta | triangular shape of sediments deposited at the mouth of a large river that flows into the ocean |
| flood plain | flat area that is found on both sides of a river made when sediments are deposited after flooding |
| levee | in nature, a ridgelike deposit along the sides of the river |
| glacier | large mass of moving ice and snow |
| till | rocks and debris deposited directly by a glacier |
| moraine | ridge of till left behind by a retreating glacier |
| drumlin | oval-shaped mound of glacial till |
| meltwater | water from melting snow and ice |
| outwash plain | flat fan shaped area in front of terminal moraines formed by sediments deposited by rivers of glacial meltwater |
| kettle lake | round, deep lake formed by a huge block of ice left behind by a glacier |
| sea cliff | steep face of rock produced by wave action |
| terrace | flat platform of rocks, sand, and silt at the base of a sea cliff |
| sea stack | a column of resistant rock left behind after a sea cliff has eroded |
| sea cave | hollowed out portion of a sea cliff |
| longshore current | movement of water parallel to a shoreline |
| sand bar | long, underwater ridge of sand |
| spit | sandbar connected to the shoreline |
| runoff | rills, gullies, streams, rivers |
| terminal moraine | till deposited at the front end of a glacier |
| lateral moraine | till deposited along the side s of a glacier |
