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Making Stuff Cleaner

This episode from the PBS Nova "Making Stuff" series, hosted by David Pogue, focuses on technological innovations in the field of renewable energy. About half the episode is spent comparing three different innovations in cars, including hydrogen fuel cells, electric cars, and biofuels. The second half of the episode looks at replacements for petroleum-based plastics.

Essential concepts: Renewable energy, photovolatic cells, hydrogen fuel cells, electric cars, biofuels, biodegradable.

Answer Key: Included as part of the environmental science instructor resources subscription page.

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