Open Sesame Science
Exploration Center

::: Put your left hand on the aluminum plate and your right hand on the copper plate. Watch the needle on the meter move. The sweat on your hands can react with metals to create an electric current. When you touch the plates, the thin film of sweat on your hands acts like the acid in a battery. It reacts with the metal plates to create an electric current that flows from one plate to another and through you. The higher the needle moves, the stronger the current.

Put your left hand on the aluminum plate and your right hand on the copper plate. Watch the needle on the meter move. The sweat on your hands can react with metals to create an electric current. When you touch the plates, the thin film of sweat on your hands acts like the acid in a battery. It reacts with the metal plates to create an electric current that flows from one plate to another and through you. The higher the needle moves, the stronger the current.