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| a period of time when much of Earth's land was covered in glaciers |
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| a large mass of slow moving ice and snow - moves because of its weight |
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| are ice masses that slowly advance down valleys that were originally occupied by streams -found in mountainous regions with low temperatures -most common type of glacier |
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| form in the polar regions and are huge sheets of ice and snow covering many millions of miles can also be called continental ice sheets |
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| bowl-shaped depression created as a glacier carves a mountian -found at the head of a valley glacier |
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| sharp narrow ridge found between 2 cirques |
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| sediment laid down by glacial meltwater |
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| a sharp mountian peak [pyramid-looking] created by 3 or more cirques |
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| a mixture of rocks and soil deposited by a glacier |
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| a ridge of till deposited by a retreating glacier |
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| flat, fan-shaped areas in front of glaciers formed by sediments deposited by glacier meltwater |
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| a winding ridge of sand and gravel formed by streams flowing beneath a glacier |
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| FLAT,FAN-SHAPED area in front of glaciers formed by sediments deposited by glacier meltwater |
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| large boulders that have been transported by a glacier |
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| a circular hole -caused when a large block of ice was buried by deposits, ice melts and leaves a hole- hole then fills with water |
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| ice melts and flows into cracks; water refreezes and expands fracturing rocks |
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| wearing away of rock by glacial ice and rock carried by wind and water |
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| lowest elevation in an area that remains covered in snow all year |
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| once narrow V-shaped valley is changed into a U-shaped valley after a glacier moves down the valley |
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| a fan-shaped deposit of sediments formed at the point where a river leaves the mountains and runs out onto a plain |
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| a flat area on the floor of an undreained desert basin that fills and becomes a lake after a heavy rain |
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| the lifting and removal of loose particles like clay and silt |
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| a stony surface layer that is left after all the sand and silt is moved by deflation |
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| deposits of wind-blown dust (fine particles of sand and silt) |
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| a mound or ridge of wind-deposited sand |
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