Soap Dispenser

Ages 14+


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Get ready for hands-on tinkering . . with squeaky-clean hands! Harness the power of pumps and switches, and rig up a mechanical soap dispenser that works with the push of a button. Explore the science of peristalsis, then deep-dive into the history of human hygiene — both good and bad!


  • Build the base
  • Build the nozzle
  • Build the body
  • Make the pump
  • Wire it up


  • Peristaltic Motion
  • History of Soap
  • Hygiene Hacks

Using charter school funds?

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