# Potato clock research paper

Commercial batteries, apart from their normal electrolyte, contain chemicals with an affinity for hydrogen, which combine with the hydrogen before it can polarize the electrodes. Label the battery voltage and the resistance light bulb. If you place a strip of copper and a strip of zinc in contact with each other, many electrons pass from the zinc to the copper.

Many fruits and vegetables contain juices rich in ions and are therefore good electrical conductors. Check out the on the science behind this powerfully delicious snack. Otherwise, you can find the materials for a potato clock in any hardware store.

Have students complete the activity again using an electrolyte solution, such as salt water or vinegar. It's not enough power to shock you, but the potato can run a small digital clock.

### Potato battery light bulb

Ask students to complete the worksheet either individually or in pairs. Therefore, the more free ions a solution has, the better conductor it will be. Answer: 4 If you have a lemon that produces 1 Volt of energy and an apple that produces 1 Volt of energy, can you light a 3 Volt clock? With the Students Divide the class into teams of two or three students each. Most people aren't aware that this is possible, which is what makes it so interesting. In this way, the process that produces the electrical energy continues and becomes useful. Placement of the nail, penny and alligator clips. The ions carry electrical charge from one electrode to another, completing the electrical circuit.

They work best if you first roll them on a table top, which breaks down the cells inside so more juice flows through the fruit current.

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