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Currents from the Kitchen

Purpose: Which fruit/vegetable will produce the most electric voltage?

Hypothesis: Lemon will produce the most electric voltage.






Materials: fruit, voltmeter, 2 wires, 2 different metals (copper/zinc), knife


  1. Cut the piece of (fruit)
  2. Put it in two pieces of metal
  3. Attach to the voltmeter
  4. Record the results
  5. Compare results from different pieces of fruit
Published inScience 9

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