| Term | Definition |
|---|
| Erosion | the force that shapes the earth; the movement of rocks and sediment by one or more agents |
| Glacier | giant mass of ice that moves and caused erosion |
| Alpine Glacier | glacier at high elevation that fills a mountain valley |
| Continental Glacier | glacier that spreads across the land |
| Cirque | bowl left behind when glacier melts |
| Sorted | rocks of the same material but in different sizes |
| Unsorted | rocks of different materials and sizes |
| Ice Age | 2 million-10,000 years ago |
| Moraine | formed from glacial deposition |
| Erratic | rock moved by a glacier and placed when glacier melted |
| Esker | long narrow hill of sediment formed under ice tunnel |
| Drumlin | canoe shaped hill formed under a melting glacier |
| Till | any type of sediment deposited by a glacier |
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