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Unit Plan

Ted: Ted Ed: The Chemistry of Cold Packs

Curated by ACT

If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding light on the concepts of energetics and entropy along the way.

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Concepts
entropy, evaporation, endothermic reactions
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Additional Tags
cold pack chemistry, cold packs, endothermic, energetics, ted, ted conferences, ted ed, ted ed lesson, ted talk, ted-ed, chemical reaction, endothermic reaction
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Classroom Considerations
  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)