definitions
Ice Age
Glaciers
Ice bergs
Importance of Glaciers
100
a large moving mass of compressed ice and snow.
What is a Glacier?
100
any of the major periods when glaciers covered much of Earth.
What is ice age?
100
a large mass made all out of ice and snow.
What is a glacier?
100
large chunks of ice that break loose.
What is icebergs?
100
ice fields, glaciers, year round snows in the high mountains are _______ _________
What is Natural reservoirs?
200
an upland area, that feeds two or more glaciers.
What is an ice field?
200
120,000 years ago
What is THE LAST ICE AGE
200
a glacier that forms in a mountain range.
What is a valley glacier?
200
when large chunks of ice break off from the edge of a glacier and become icebergs.
What is Calve?
200
_______ feed constant supply of meltwater into the river systems.
What is glaciers?
300
a glacier that forms in a mountain range..
What is a valley glacier?
300
28% of land was covered
What is glaciers?
300
a huge mass of ice and snow that occur in Greenland, Antarctica.
What is continental glacier?
300
a sheet of ice rarely more than 5 m thick that breaks easily.
What is pack ice?
300
Glaciers exert a direct influence on the _____ _____ by slowing the passage of water in summer
What is water cycle?
400
a glacier flows over a steep cliff and breaks up.
What is ice fall?
400
A small change in average tempature is enough to start a chain of events that produce an _____ ____
What is ice age?
400
new snow becomes old snow then from snow forms glacial ice.
What is how does a glacier form?
400
pack ice is rarely ?more than ___ thick.
What is 5m
400
Glaciers are excellent storehouses of vast quantities of _____ _____.
What is fresh water?
500
a fissure or crack in the ice
What is crevasse ?
500
Changes in the tilt of the earths axis, or in its orbit may produce _____ ________.
What is colder climates
500
Some _______ _______ 's are ice fall, and crevasse.
What is glacier feature?
500
water formed by the melting of snow and ice, that carves channels between glaciers.
What is meltwater?
500
Glaciers provide important clues to the ____. They release water when it is needed most, during the hot, dry ______ months.
What is Past and summer/
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