Spotlight On Physical Science

Sound is more than just the things we hear. It''s made up of sound waves or vibrations that travel through air, water, and even solid objects. Readers will learn how sounds are created and about the kinds of sound waves, the properties of sound, and the scientific laws of sound. They''ll also discover how we produce music and speech and how we hear. Primary sources and full-color photographs aid readers in understanding this complex physics topic.