# Fun Science Projects & Experiments: Create a Lemon Battery

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Science projects, videos and experiments for various grades and topics.

### Science Projects or Science Experiments Grades 3 & 4

Science Experiment: Make a Lemon Battery

Things needed:
1. A strip of copper
2. A strip of zinc
3. A juicy lemon
4. A galvanometer
5. A sharp knife
6. Some copper wire

Step 1: Roll the lemon firmly on a hard surface to make it soft and juicy
Step 2: Cut two slits in the lemon
Step 3: Put a strip of copper in one slit and a strip of zinc in the other slit
Step 4: Use the copper wire to connect the strips to the galvanometer

How much current is flowing in this cell?
What is the electrolyte?
What are the electrodes?
Create a Lemon Battery
Creating a battery from a lemon is a common project in many science text books. Successfully creating one of these devices is not easy. This video demonstrates how to construct and use a lemon battery to light an LED and operate a calculator.
Lemon Battery Experiment

Potato Battery
How to make a battery from a potato?
Science Experiment: Make a Vinegar Battery

Things needed:
1. 2 strips of copper
2. A strip of zinc
3. A glass of vinegar
4. A galvanometer
5. Some copper wire

Step 1: Place the zinc and copper strips into the glass of vinegar
Step 2: Use the copper wire to connect the strips to the galvanometer

How much current is flowing in this cell?
What is the electrolyte?
What are the electrodes?
What happens to the current flow if the strip of zinc is replaced by a strip of copper?

Vinegar Battery
Using only vinegar and a few simple materials it is possible to construct a working battery. This video explains how to construct, and use, a battery like this to power a calculator. A good science project as part of an introductory electricity course. This project can be used as a science fair project.

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