Energy is one of the most fundamental parts of our universe. We use energy to do work. Energy lights our cities. Energy powers our vehicles, trains, planes and rockets. Energy warms our homes, cooks our food, plays our music, gives us pictures on television. Energy from the sun gives us light during the day. Energy is defined as "the ability to do work." When we eat, our bodies transform the energy stored in the food into energy to do work. When we run or walk, we "burn" food energy in our bodies. But where does energy come from? There are many sources of energy. In this program we'll look at the energy that makes our world work. There are eight different forms of energy which are heat, light, sound, chemical, electrical, magnetic, nuclear and mechanical energy.

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