Cool Science Liquid Clock
Cool Science box kits are a great way to get younger children interested in electronics. Wires are easy to connect with the built-in breadboard and the necessary components are integrated into the base. Children will gain hands-on experience on the fundamentals of electricity with this cool looking box kit.
The juices in fruits and vegetables are electrolytes that cause certain chemical reactions. This is very similar to a commercial battery in which acids react to produce electricity. With this experiment, test with various liquids and juices such as orange juice, cola, and vinegar to see which are most effective to power the LCD clock! No batteries required!