Vocabulary
Features
How Glaciers Form and Move
How Glaciers shape the land
Miscellaneous
100
A large mass of ice slowly moving over Earth's surface
What is a glacier
100
Glaciers may leave behind large lakes in long basins.
What is a glacial lake?
100
All directions.
Which direction do continental glaciers flow?
100
Plucking and abrasion.
What is two processes by which glaciers erode?
200
A glacier that covers much of a continent or large land
What is a continental glacier?
200
A drumlin is a long mound of til that is smoothed in the direction of the glacier's flow.
What is a drumlin.
200
Glaciers can form only in an area where more snow falls than melts.
Where do glaciers form?
200
It deposits the sediment it eroded from the land creating various landforms.
What happens when glaciers melt?
200
Abrasion
What is the process of which gouges and scratches the bed rock?
300
A process of which glaciers picks up rocks when it flows over the land
What is plucking?
300
When glaciers carve away the sides of a mountain the result is a horn a sharpened peak.
What is a horn?
300
Usually move down valleys that have already been cut by rivers.
Which direction do Valley Glaciers flow?
300
till.
What is mixture of sediments that a glacier deposits directly on the surface is called?
300
10,000 years ago when continental glaciers covered most of North America
When did the last ice age happen?
400
A valley glacier is a long, narrow glacier that forms when snow and ice build up high in a mountain valley
What is a valley glacier?
400
A sharp ridge separating two cirques
What is an Arête?
400
On high mountains.
Where are valley glaciers found?
400
kettle
What is a small depression that forms when a chunk of ice is left in glacial till?
400
Today continental glaciers cover 10% of earth's land
What is the percentage that continental glaciers cover earth's land?
500
The till deposited at the edges of a glacier forms a ridge
What is a moraine?
500
A fiord forms when the level of the sea rises, filling a valley once cut by a glacier
When does a Fiord Form?
500
30 to 40 meters.
What is the depth of snow and ice needed for gravity to pull glaciers down hill?
500
Till which is deposited ridge.
What is a moraine a product of?
500
6 kilometers year
How much can a surging glacier flow?
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