click below
click below
Normal Size Small Size show me how
Erosion
For the test on 5/1/14
| Term | Definition |
|---|---|
| sediment | The material moved by erosion |
| deposition | the process by which sediment is laid down in a new location |
| erosion | the process by which natural forces move weathered rock and soil from one place to another |
| water | the major agent of the erosion that has shaped Earth’s surface |
| river | formed when several streams flow together to form larger body of flowing water |
| trubutary | a stream that flows into a larger stream |
| runoff | the water that moves over the Earth’s surface after a rainfall |
| meander | a looplike bend in the course of river |
| caves | can be formed when groundwater and carbon dioxide create carbonic acid and erode limestone |
| oxbow lake | a meander that has been cut off from the river. |
| glacier | any large mass of moving ice and snow, which form u-shaped valleys |
| valley glacier | a long, narrow glacier that forms when snow and ice build up high in mountain valleys |
| continental glacier | covers much of a continent and is much larger and thicker than a valley glacier |
| The times in the past when continental glaciers covered large parts of the earth’s surface were called | ice age |
| The Great Lakes were created by | continental glaciers during the last ice age |
| As a glacier flows over the land, it picks up rocks in a process called | plucking |
| till | the sediments directly deposited by glaciers |
| The till deposited at the edges of a glacier forms a ridge called | moraine |
| Explain the type of erosion that creates caves, including how carbonic acid forms, and the type of rock that makes up caves | chemical weathering, carbon dioxide and rainwater, and limestone |
| Explain how glaciers form and compare and contrast valley and continental glaciers | huge amount of snowfall and very cold, valley are slimmer and longer, continental are larger and wider. |