Energy is an important part of our universe, our world, our state and our lives. We use energy to do work. Energy powers our cars, planes, trains, rockets and rollercoasters. Energy lights our homes, heats and cooks our food, and with it we can listen to our radios, boom boxes and CD players. Energy turns on our television sets, computers and dries our hair with blow dryers.
Energy runs machinery in factories.
Everything we do in our life takes energy. Energy makes everything in our lives work. Whenever you see something in motion, something that is heated or is lighted, energy is involved. For example, our bodies change the food we eat into the energy we need to do work. When we run or walk, think, read, write or skate, we burn the food energy stored in our bodies.