If a potato can produce electricity. It could be used to make small electrical appiclcanies function without using a proper battery eg: small digital clock.

Eg: small digtial clock

Variables identified

• mass of the potatoes
• current
• time
• substance

Variables controlled

• time
• mass of the potatoes

Prediction

My prediction is that for all the potatoes, the current that is produced by the potatoes wouldn’t have much variation in all the readings according to the multimeter

Method of measuring outcomes

My method of measuring outcomes is using a multimeter to measure how much current is produced from the potato battery

Safety Issues

Be careful around the potatoes because the potatoes contain phosphoric acid which is corrosive.

Wash your hands before and after halndling the potatoes.

Do the experiment on a dry surface and keep the experiment away from heat sources

Procedure

1. Cut all the potatoes in half, place two halves of the potatoes on the plate.
2. Put one of the nails in both halves of the potato and do the same with the pennies
3. Place the white wire on one of the nails in the same half of the potato, put the black wire on the penny
4. Place the red wire on the penny on the other half of the potato.
5. Attach the other end of the black wire to the last nail with no wires attached.
6. Put the black meter wire into the dc hole