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We already know why polar bears don't eat penguins, but what do they eat? In this podcast, we'll share a simple activity that opens a window to understanding a unique ecosystem as one example of a food chain - the Arctic Ocean.

This podcast includes directions for an activity where students build a mobile that represents an Arctic food web.

This podcast interviews Dr. Monaghan who does climate research in Antarctica.

Dr. Andy Monaghan, researcher at the National Center for Atmospheric Research gives us the lowdown on climate change and it's impact on Antarctica. In doing so, educators can address common questions students might have about climate change and also learn simple ways that we can mitigate our impact on the environment. [10:41]