Build a Buoyant Catamaran

Engineer a catamaran that can carry 15 ounces of cargo without sinking.

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Inspiration Video

Suggested Materials

Recommended
  • plastic bottles
  • popsicle sticks
  • tape
Testing Station
  • weight like canned food
  • tub
  • water

Difficulty Level

1
2
3

This design challenge requires simple motor skills, understanding of straightforward concepts, or common materials to build.

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