| A | B |
| erosion | moves sediments from place to place |
| deposition | process of dropping sediments |
| mass movement | when gravity causes materials to move downslope |
| slump | mass movement that happens when loose materials slip down a slope |
| creep | sediments slowly inch their way down a hill |
| mudflow | occurs in dry areas with thick layers of dry sediments |
| glacier | moving mass of ice and snow |
| plucking | rock pieces are lifted out by glacial ice and added to the bottom and sides of a glacier |
| till | mixture of different size sediments at the base of a glacier |
| moraine | ridge of till deposited in front of a glacier |
| continental glaciers | huge masses of ice and snow |
| valley glaciers | occurs in mountains where temperatures are low and snow accumulates faster than it melts |
| outwash | material deposited by the meltwater from a glacier |
| deflation | wind erosion that removes fine-grained sediments |
| abrasion | erosion caused by wearing away by sand grains |
| loess | wind deposits of fine grained sediments |
| reduce wind erosion | windbreaks made of plant vegetation and roots |
| leaves a curved scar | slump |
| rock slides | leaves rocks at the bottom of a mountain |
| ways to slow erosion | planting, building walls, controling runoff |