Friction Climbers

Ages 9-16+


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Engineer 3 wooden animals to explore the mechanics of friction! Make a sloth that climbs up a vine, build a gecko that shimmies up a string, and craft a spider that spools itself upward.

Includes illustrated blueprint instructions, materials, and a special-edition Tinker Zine magazine to learn more about the science of friction.


  • Spider Spooler
  • String-Climbing Sloth
  • Goin' Up Gecko
  • DIY Fluttering Chickens
  • "Feel the Friction" Tinker Zine magazine


  • Friction and Grip
  • Toy Design
  • Spool Mechanics

Using charter school funds?

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