Sound (A True Book: Physical Science)

Whether you?re walking along a busy city street or enjoying the solitude of the wilderness, you are always surrounded by sound. Readers will learn how sound waves are formed and how they change as they move. They will also find out how people hear sound, how sound waves can be used in unexpected ways, how the properties of a sound wave affect the way it is heard, and much more. Features include eye-catching sidebars; experiments and activities to encourage hands-on learning; glossaries; charts, diagrams and more.