"In simple language, explains how the eyes work to help us see. Describes how the parts of the eye take in light and how the nerves in the eye send messages to the brain to tell us what we see"--Provided by publisher.
"In simple language, explains how the ears work to help us hear. Describes how the parts of the ear take in light and how the nerves in the ear send messages to the brain to tell us what we hear"--Provided by publisher.
