Sending messages with light and sound

Description:

"Young readers will learn how we send and receive messages using light and sound in this accessible, photo-filled book. Simple text explains different methods of sending messages and shows how light and sound make sending these messages possible. Vibrant photos bring basic science concepts to life and encourage kids to explore light and sound on their own"--

subjects: Sound,  Light,  JUVENILE NONFICTION,  Juvenile literature,  General,  Light, juvenile literature,  Sound, juvenile literature