How To...

Make a Metal Detector (easy)

Materials


  • Calculator
  • Portable AM and FM radio
  • Electric tape
  • Headphones

Let's MAKE it!

  • Hold the calculator and radio back-to-back.
  • Tape them together with electric tape
  • Make sure that the radio is switched to AM
  • Plug in the headphones
  • YOU GOT YOURSELF A METAL DETECTOR!

How You know its Working

As you get the metal detector closer to a metal object the buzzing from the radio becomes louder.
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Steps of how it works. WITH PICTURES.