But chemical reactions can also produce other forms of energy such as light and electricity. In a light stick, two chemicals react and light is produced instead of heat. The effect is best in the dark. The chemicals in the stick are available from science supply companies. Illustrate the use of any battery powered device.
Batteries use chemical reactions to produce electricity instead of heat.
Rechargeable batteries can also undergo the reverse process, turning electricity into chemical potential. Lightning bugs produce their own chemicals and react them in their tails to signal each other. Automobile batteries are rechargeable. All the things in your car that use electricity work of the battery.