Build a Cantilever

Make a cantilever that can hold 5 marbles at least 12 inches away from its base structure.

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Inspiration Video

Suggested Materials

  • spaghetti, straws or popsicle sticks
  • four feet of tape
Testing Station
  • string
  • marbles
  • cup
  • ruler

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.