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Glacier
a large mass of ice and snow moving on land under its own weight
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Plastic Flow
slow movement of a glacier in which ice crystals slip over each other
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Plucking
process that adds various sizes of sediment to the glacier's bottom as it freezes and melts
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Till
a mixture of different-sized sediments that is dropped from the base of a reterating glacier
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Erratic
large boulders transported and deposited by a glacier
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Striations
grooves carved into rock, caused by glacial till
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Polishing
the smoothing and leveling of rock by fine debris
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Moraine
a large ridge of rocks and soil deposited by a glacier when it stops moving forward
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Outwash
material deposited by meltwater from a glacier
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Esker
a winding ridge of sand and gravel that is left behind when a glacier melts
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Drumlin
a long, low, tear-shaped mound of till
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Continental Glacier
Continental Glaciers are found in and around the Arctic, Antarctic circles, Greenland and island in the polar regions
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Valley Glacier
Valley Glaciers are found in mountain regions all over the world. They begin in the mountain where it is snows all year and the temperatures are always below freezing
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Roche Moutonne
a rock or bedrock hill that has been smoothed on the side the glaciers came from and plucked and jagged on the side the glaciers leave
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Kettle Pond
is a shallow, sediment-flled body of water formed by retreating glaciers or draining floodwaters
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U-shaped Valleys
the shape of the valley which a glacier carves
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Climate Change
the rising and falling of the Earth's temperature over time (ex. during hot periods, ice will melt and sea levels wil rise and during cold periods, ice will build and glaciers will form
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