Sunday, February 24, 2013

What is energy?


Energy is the power that make things work.
 We use energy  in everything that we do. We need energy to walk to school, to play, or to cook our food. There are many different forms of energy , like : nuclear, electrical, light, thermal, elastic, chemical, gravitational, kinetic  and sound energy. 
You can change energy from one type to another, for example when you eat food you give your body chemical energy, and you change this into kinetic energy when you move, heat energy to keep your body warm and sound energy when you speak. 
Energy can’t be created or destroyed. Energy can be classified as renewable and non- renewable.

By: Maria

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