Although they are all around us, light and sound arevery difficult to explain to young children. Now readers can join an expert to uncover what light and sound are, how they are generated, and how a reader s own eyes and ears work. The precise, age-appropriate text, simple hands-on projects, and key vocabulary defined in the glossary make this a great introduction to an essential scientific subject.

About the Author

Dr. Mike Goldsmith has a Ph.D. in astrophysics and studies the philosophy of time and space. He is the head of acoustics at the United Kingdom's National Physical Laboratory, and is the author of more than twenty nonfiction books for children.

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