Bear Elective 4 - Electricity

ELECTRICITY (Page 192)
  1. Wire a buzzer or doorbell.
  2. Make an electric buzzer game.
  3. Make a simple bar or horseshoe electromagnet.
  4. Use a simple electric motor.
  5. Make a crane with an electromagnetic lift.

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Bear Elective 5 - Boats

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Bear Elective 3 - Radio