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PBS

Pbs Learning Media: Arctic Ice Extent, 1999 2016

For Students 9th - 10th
Scientists study sea ice extent closely because it influences global climate. Follow the decline in Arctic sea ice in this animation adapted from NASA showing the yearly maximum and minimum sea ice extents from 1999 to 2016. Resources...
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Princeton University

Princeton University Library: Exhibition: Of Maps and Men: Samuel Hearne

For Students 9th - 10th
Entry about eighteenth-century explorer Samuel Hearne, from a larger exhibition about the search for a passage to the Orient through Canada. Hearne is credited with surveying the Coppermine River and with being the first European to view...

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