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Home > Learning Center > Science Center > Make Electrical Test

How to Make an Electrical Conductivity Test

As scientists worked with electricity, they found that current flows through some materials and not others. This experiment shows you how to make an electrical test that shows which materials act as conductors.


Materials You Will Need:

  • Energizer® Power Pack
  • Bulb holder or alternate insulated bulb holder
  • (3) 12" pieces of number 22 insulated copper bell wire with approximately 1" of insulation stripped off all ends

Please Read Carefully!

All experiments use safe, low-voltage battery power. Household electrical current contains high voltage that could cause serious injury. DO NOT use household electrical current for any of these experiments. ALL experiments should be conducted under adult supervision.

  • Carefully follow wiring instructions for each experiment. Improper wiring can result in battery leakage and/or rupture.
  • DO NOT take a battery apart. Contact with internal battery material can cause injury.
  • DO NOT dispose in fire, recharge, put in backwards, or mix with used or other battery types. This may cause batteries to explode, leak and cause personal injury.