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Glaciers - Coggle Diagram
Glaciers
covers 10% of Earth
in 47 countries
During the last ice age it covered a third of earth
Types
Alpine
Continental Glaciers
largest reserve of fresh water
If all melted the sea levels would rise 250 feet
Really slow
Move 50 feet a day
Carry rocks and minerals as the move
Erode rocks
Alaska has more then 100,000 glaciers
single layer can be as large as a baseball
glaciers on a slope can be as thin as 50 feet
Ice sheets have existed for at least 40 million years
Largest is 60 miles
Must be 25 acres
Formed by snowflakes and time
Blue because it's the only color they can't absorb
Have once dotted mars
reflects heat from the sun
not just in the north and south poles
You can tell where they've been