2.Potential energy: energy stored in an object or material.
3.Conduction: Movement of energy from a hot object that comes into contact with a cooler object; the material remains in place.
4.Convenction: movement of energy by the flow of matter from place to place.
5.Radiation: movement of energy in the form of waves that can travel through empty space.
6.Wet cell battery: a battery containing liquid solution that produces the electricity current.
7.Dry cell batery: a battery that uses "dry chemicals" to produce an electric current.