| A | B |
|---|
| weathering | Process by which factors or conditions in the environment break rocks down into smaller pieces. |
| erosion | Process of wearing away rock and transporting sediments. |
| deposition | Change of state from a gas directly to a solid without becoming a liquid first. Opposite of sublimation. |
| chemical weathering | Chemical changes that break down rocks into smaller pieces or dissolve them in solution. |
| mechanical weathering | A physical process that breaks down rock into smaller pieces. |
| frost wedging | Lifting of a warm air mass above a cool air mass acting as a wedge. |
| exfoliation | Mechanical weathering process in which thin layers or slabs of rock flake off due to heating or cooling or due to the release of the weight of overlying rock removed by erosion. |
| biological weathering | A combination of chemical and mechanical weathering processes resulting either from the plant chemicals or wedging/burrowing or plants and animals exposing more rock. |
| mass wasting | Transportation of rocks and soil downhill by gravity alone. |
| landslide | Rapid mass wasting of earth materials downhill. |
| sorting sediment | Orderly pattern of sediment deposition as a stream slows down and turbulence decreases. |
| deflation | Removal of small clastic particles by wind over a large area, leaving behind cobbles and larger rocks that form a desert pavement. |
| abrasion | Erosion of exposed rock by wind-driven sand; similar to artificial sand blasting. |
| dune | A hill like landform consisting of wind-deposited sand and soil. |
| loess | A thick deposit of fine windblown dust and silt that provides an excellent base for rich soil. |
| glacier | Large mass of dense, compacted snow and ice that flows downhill under the influence of gravity. |
| glacial drift | Sediments deposited by a glacier. |
| till | Unsorted glacial sediments deposited when a glacier melts and retreats. |
| moraine | Sedimentary ridge or surface formed by glacial till after a glacier melts or retreats, forming at the front or side of the glacier. |
| soil convervation | Method used to prevent soil erosion. |
