| A | B |
|---|
| barriers | Materials that help slow down erosion. |
| deposition | The process by which material is eroded by water, wind, waves, or ice and are dropped into a new place. |
| erosion | The process where Earth materials are broken down and moved from one area to another |
| flow | A path by which large amounts of materials move across the land. |
| glacier | A large body of moving ice |
| weathering | The breakdown and wearing away of rock material. |
| precipitation | Water that falls to the surface of the Earth such as rain, hail, sleet, or snow. |
| wind | Moving air |
| delta | Sediment deposits at the mouth of a river. |
| sediment | Pieces of rocks, soil, sand, shell, and remains of organisms |
| runoff | The draining away of water from the surface of an area of land |
| landforms | A natural structure on the Earth’s surface. |
