Light, Sound, Energy Hardcover by Terry Books

Light is a form of energy made up of tiny particles called photons. Sound is nothing but the vibration of air molecules, when they gain energy. Without energy there would be no light, no sound and no action! Read this book to learn about the different forms of energy. Follow the questions and answers between the Green Genius and little Teri, to unearth facts about different forms of energy and tips on how to save it.