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

Procedure:

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