Ice-Tray Battery
Voltaic batteries turn chemical energy into the electrical energy we use to power electronics. With this science experiment, student can create their own voltaic batteries using ordinary items.
Materials:
- Distilled white vinegar
- 5 pieces of copper wire
- 5 galvanized nails
- Ice tray
- 1 LED light
- Adult supervision
Instructions:
- Wrap a nail with a piece of copper wire, leaving a section of wire extending from below the head of the nail.
- Repeat Step 1 with the remaining 4 nails and 4 pieces of copper wire.
- Fill 6 wells of an ice tray with distilled white vinegar.
- Create a circuit by inserting each nail into a well of vinegar while placing the extended wire into the next well.
- Place one “leg” of an LED light into the well with only a copper wire inside it and place the other LED “leg” into the well with only a nail in it. If the bulb lights up, you nailed it! If the bulb doesn’t light up, flip the legs around!
Source: http://www.stevespanglerscience.com/lab/experiments/ice-tray-battery/