| A | B |
| deposition | The process in which sediment is laid down in a new location |
| meander | A looplike bend in a river |
| alluvial fan | A wide, sloping deposit of sediment formed where a stream leaves a mountain. |
| tributary | A stream or river that runs into another stream or river |
| erosion | The process by which water, ice, wind or gravity moves weathered rock and soil. |
| mass movement | Landslides, mudflows, slump and creep-caused by gravity |
| kinetic energy | The energy an object has due to movement |
| potential energy | Energy that is stored |
| mass movement and runoff | The cause of most sediement getting into a river |
| contential glaciers | A glacier that covers much of a continent-move in any direction |
| valley glaciers | A long, narrow glacier that moves in one direction |
| abrasion | The grinding away of rock by other rock particles often forming scratches .. |
| kettles | A small depression that forms when a chunk of ice is left in glacial till. |
| plucking | The process by which a glacier picks up rocks as if flows over the land. |
| glaciers | A large mass of moving ice and snow on land. Formed when more snow falls than melts each year |
| terminal moraine | A ridge of till located at the farthest point reached by a glacier |
| deflation | The process by which wind removes surface materials. |
| drainage basin | An area from which a stream or river collects its water. |
| delta | Formed when a river slows down as it flows into an ocean or lake and drops sediment |
| oxbow lake | Formed when a meander is cut off from the main stream of the river. |