Electricity Project: Fruit Batteries Project

The following sample fruit batteries project experiment is meant to give you ideas on how to perform experiments and arrange your project. Use this electricity science project to come up with ideas for your own experiments.

Electricity Science Project - Fruit Batteries

The purpose of this kid science fair project experiment is to determine which fruit produces electricity for the longest period of time.

Background:

Research information on batteries, electricity, and electrical circuits. Answer the following questions: What is a voltaic battery? How do batteries produce electricity? How can fruits be used as batteries?

Hypothesis:

From your research you will predict which fruit will produce electricity for the longest period of time.

Materials: (Adult supervision of kids is always recommended.)

• Suggested kit: Two Potato Clock

       
       Scientifics Online: Two Potato Clock - ages 6 and up

• 1 of each fruit (lemon, apple, orange, and tomato)
  
  
• paper
  
  
• pencil
  
  

Procedure:

1. Gather materials needed for your experiment.

2. Record all of the materials in your kit.

3. Press and roll the large lemon on a flat surface to loosen juices.

4. Follow instructions on your kit for how to insert the probes into your fruit.

5. Once your clock starts working, record the time it takes for the clock to stop functioning.

6. Repeat steps 4 and 5 with the apple, orange, and tomato.

7. Repeat this experiment two more times.

Record Observations

Fruit	Hours Clock Functioned Properly
	Trial 1	Trial 2	Trial 3
Lemon
Apple
Orange
Tomato

Results:

Record your data and compare your results. Graph and chart your data. Which fruit lasted the longest?

Conclusion:

Summarize what happened in your fruit batteries project experiment based on your results. Explain patterns in your data. Did your data support your hypothesis? If not, explain why. Evaluate your project and make suggestions for improvements.

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