Need Batteries? Use Fruits!

Science Fair Project

Problem

How to make a battery using different fruits & veggies.

Hypothesis

I think that citrus fruits will have more volts because the juice inside citrus fruits will flow easier.

Materials

Fruits and veggies:

lemon

apple

orange

carrot

banana

potato

grapefruit

pomegranate

onion

tangerine

2 in. galvanized nail

2 in. copper nail

voltmeter

Independent Variable

The fruits and veggies.

Dependent Variable

How many volts the fruits and veggies give.

Controlled Variable

The temperature.

Procedure

1. Prepare your fruit or veggie for the experiment by squeezing on all sides with your hands.


2. Insert your nails into the fruit or veggie, approximately 2 in. apart. The ends of the nails should be in the fruit, not touching.


3. Connect the "+" wire of the voltmeter to the galvanized nail and the "-" wire of the voltmeter to the copper nail.


4. Record the results.


5. Repeat with each fruit and veggie.

Questions I Would Like To Answer

1. What would make a better battery? A lemon, a potato, or an apple?


2. Where did I get my materials?


3. What did I learn?

Resources

Reaserch Notes

I can't use hard shells fruits because the nail will break it.

Results

Big image

Conclusion

My hypothesis was half right because the oranges and the lemons had the most volts but the tangerine and grapefruit were on the bottom half.
Big image