Ever wonder what would happen if high voltage was applied to a pickle? The Electric Pickle chemistry demonstration is a way for students to see how excited electrons will emit light when they fall back to the ground state. Since pickles are soaked in salt, Na+ and Cl- ions are present. Thus pickle will conduct electricity. The Na+ when excited will emit an orange yellow color when the electrons fall to the ground state. If I were a Physics teacher I could use the demonstration to show resistance in an electricity unit. Alas, I do not teach Physics.