Fruit Battery

Project Title:
Fruits and vegetables have voltage?

Problem & Purpose:
The purpose of the experiment is to understand how battery works and find out which fruit and vegetables that we eat can be used as an alternative way for a battery source.
I become interested on seeing how batteries where used to power up my flash light and toys.
The information from this experiment will help kids like me to power something for a short period of time and take our thoughts forward in the world of science.

Hypothesis :
My hypothesis is that lemon and orange which contains more juice compared to other citrus fruits will generate more voltage that would be enough to light a simple low voltage light bulb for a very short time.

Materials :
Items needed
Quantity
Lemon
1
Orange
1
Onion
1
Tomato
1
Potato
1
Paper
1
Pencil
1
Clock
1
Copper metal
2
Zinc metal
2
Cables

Multimeter
1
Light Blub
1

Procedure:

1. Gather all things needed for experiment.
2. With the help of the adult, remove plastic coatings at the end of all wires with scissors.
3. Gently roll each fruit on a table to soften it or squeeze it with your hands. The purpose of this is to make the juice flow inside the fruit without breaking the skin.
4. Take the white cable and tie one end to the Zinc metal contact and the other end of the Copper metal contact.
5. Take the red cable and tie one end to the Copper metal contact.
6. Take the black cable and tie one end to the Zinc metal contact.
7. Insert the metal contacts to the fruit.
8. Watch fruit generate energy to