Build a Self-Propelling Boat

Build a fast, stable boat that can move through the water for at least 1 foot using a hand-powered propeller.

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Inspiration Video

Suggested Materials

Recommended
  • straws
  • popsicle sticks
  • rubber bands
  • waterproof tape
  • scissors
Testing Station
  • 2 foot container or tub
  • water
  • ruler or yardstick

Difficulty Level

1
2
3

This design challenge may require moderate motor skills, understanding of some abstract concepts, or uncommon materials to build.

This is the difficulty level for a typical 4th grade classroom. Modify as needed for other age groups.

Resources

This design challenge has downloadable resources available.
Mentors and parents with access to this design challenge can download resources.