| A | B |
|---|
| erosion | movement of weathered materials from where they formed to a new location |
| deposition | accumulation of eroded sediments |
| creep | the slow movement of soil downhill in response to the freezing, thawing, and gravity |
| slump | the slow mass movement of material |
| rockslide | the mass movement of falling rocks |
| mudflow | the mass movement of water-saturated layers of sediments that flow easily downhill |
| flood plain | land area beyond the river channel where light sediments are deposited by flooded rivers |
| delta | triangular shaped land area formed when a river empties into a large body of water |
| firn | snow that has survived for one year without melting. about fifty percent air |
| newly fallen snow | about 50 percent air |
| glacial ice | less than twenty percent air |
| valley glacier | small glaciers found at higher elevations in mountain regions |
| continental glacier | masses of ice and snow that cover large land masses near the earth's polar regions |
| glacier eroded valleys | U shaped |
| stream eroded valleys | V shaped |
| dune | mound of wind eroded loose sediments or sand particles that are blown by wind and deposited in another location |
| landforms | surface land features |
| meanders | curves or bends in a river, formed by fast moving channels of deep water |
| runoff | rainwater that flows off aland surface and does not soak in |
