What is a glacier? A glacier is a large mass of ice that moves very slowly.

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Presentation transcript:

What is a glacier? A glacier is a large mass of ice that moves very slowly.

://geology.about.com/od/glaciers_ice/ig/glacier-pictures/cirque-glacier.htm How do glaciers form? Glaciers are created when snow accumulates year after year and does not melt. microscope-snowflakes/ ckexternal&s=causes snowflakes/ king.html glaciers_form#

Anatomy of a Glacier

Glaciers change the landscape… 10/PhysicalWorld/Glacial%20Landforms/glacial_l andforms.htm l

Glaciers change the landscape…

Glaciers change the landscape as they move…

Glaciers change the landscape as they move…

Glaciers change the landscape as they move…

Glaciers change the landscape as they move…

Glaciers change the landscape as they move… G

Glaciers change the landscape as they move…

Glaciers change the landscape as they move…

Glacier movement changes the landscape, but the landscape can affect the movement of the glacier. Different glaciers have different velocities.

What affects glacier speed? Slope

What affects glacier speed? Ground Surface

What affects glacier speed? Temperature grams.html/ pitztal-tyrol/items/glacier-summer.html/

Test it for yourself…

We have glaciers here in Colorado!

Much of the Front Range used to be covered in ice.

Unfortunately, our glaciers days are numbered… Arapahoe Glacier

Unfortunately, our glaciers days are numbered… Tyndall Glacier