Lesson 70 - Is soap self-cleaning?

I Slept Through Science

Inspired by a scene from the TV show Friends, Cheryl wants to know if soap is self-cleaning or not. Through talking about the science behind soap, Cheryl realizes she doesn't really know what soap does. Do you know? It's never too late to learn about the world around you. This is part of the Invisible Things unit.

Resources from this episode:

Frequent questions about hand hygiene How does soap work? How soap works: the science behind hand washing

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