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Engineer a Safe Stopping Robot

Engineer a robot that turns itself off when it leaves a safe area.

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Inspiration Video

Suggested Materials

  • 2 AAA or AA batteries
  • 1 battery holder
  • 1 DC motor
  • 2 paperclips
  • 2 binder clips
  • masking tape
  • 1 hot glue stick or gummy
  • 1 cup
  • 2 wires with alligator clips
  • scissors
Optional Testing Station
  • foam board, poster board or paper
  • aluminum foil

Difficulty Level


This design challenge may require complex motor skills, understanding of abstract concepts, or unusual materials to build.