Purpose: Which fruit will produce the most electric voltage?

Hypothesis: When attaching the battery to a Orange or a Lemon, it will have the highest voltage amount.

Materials:

• 1 voltmeter
• 2 wires
• 1 nail
• 1 copper strip
• a orange
• a pickle
• a lemon
• knife
• zinc and copper

Procedure

1. Cut the piece of fruit
2. Put in 2 pieces of metal
3. Attach to the voltmeter using wires
4. record the results
5. compare results from several pieces of fruit

Why? I feel that the citrus in the orange and lemon will produce some voltage.

Results

• Small Orange = .4 volts
• Big Orange = .3 volts
• Lemon = .5 volts then .8
• Pickle = .8
• Pear = .5 volts
• Potato = .5 volts

Images of the Lab

Conclusion

My hypothesis was wrong, the citrus fruits didn’t produce the biggest charge, the Pickle and Potato did. I really thought that the citrus would produce some sort electrical charge, but I was wrong.