Glaciers Then and Now

In this activity, students compare two photographs (with time spans of 30-100 years between photos) of specific Alaskan glaciers to observe how glaciers have changed over the time interval. Activity is a good kickoff for learning about glaciology - how and why glaciers form, grow and shrink, and their relation to climate change.

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Teri Eastburn
Lisa Gardiner
Windows to the Universe

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Teaching Tips

Teaching Tips

Students would be likely to learn more from the activity and be better able to respond to the discussion questions if they did their own investigation of the nature of glaciers worldwide, using the resources provided at the end of the activity.

Targeted to grades 4-8, but educators should adapt accordingly; older students will need to do more than compare photographs.

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