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WHERE TO FIND A "GROUND"

Some types of electrostatic experiments require a connection to "earth" or
"ground". Here are some places where electrical ground can be found:

  1. A metal stake hammered into damp earth outdoors
  2. Cold water pipe, or metal faucet on a sink
  3. Screw which holds the plastic plate onto an electric outlet
  4. 3rd prong of any American electric outlet (dangerous for kids.)
During a science fair, sometimes you can use a metal table top as your
"ground." If nothing else is available, spread a long sheet of aluminum
foil on the floor and use it as "ground" (if the humidity is very low,
this might NOT work very well, but it's better than nothing.)


 






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