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