| A | B |
|---|
| Weathering | the breaking down of rocks and other materials at the earths surface |
| Erosion | the process by which the products of weathering are moved from one place to another. |
| Abrasion | the wearing away of a substance by solid particles carried by wind, water or other forces. |
| root-pry | the breaking apart of rocks caused by the growth of plant roots. |
| frost action | the breaking apart of a rock caused by the water freezing and expanding within cracks. |
| landslide | -a large downhill movement of loose rocks and soil caused be the pull of gravity. |
| oxidation | the process in which oxygen chemically combines with another substance. |
| Deposition | the process by which sediments are laid down in new locations. |
| Loess | accumulations of fine particles of sand and silt deposited by the wind. |
| mass waisting | the downhill movement of sediments due to gravity. |
| sea stack | A column of resistant rock left behind after a sea cliff has been eroded away. |
| sea cave | a hollowed out portion of a sea cliff. |
| Tributaries | a large stream or small river that flows into an area;s main river. |
| oasis | a place in the desert that is fertile because it has a supply of water. |
| chemical weathering | weathering that involves changes in the chemical makeup of rocks. |
| glacier | a lrge mass of moving ice and snow. |
| beaches | formed from eroded rock particles that built up in one location. |
| drainage system | the network of streams and other bodies of running water that ultimately drain into an area's river. |
| drainage basin | the area drained by a main river and it's channels. |
| mechanical weathering | weathering that does not involve changes in the chemical makeup of rocks. |
| exfoliation | the breaking off of curved sheets or slabs parallel to a rocks surface due to weathering. |
| carbonation | the process by which carbonic acid reacts chemically with other substances. |
| temperature | the degree of coldness or heat. |
| wind | air in motion over the surface of earth. |
| gravity | the downpull of objects. |
