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.

Informazioni sull?autore

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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Better World Books (https://www.BetterWorldBooks.com) is a for-profit, socially conscious business and a global online bookseller that collects and sells new and used books online, matching each purchase with a book donation. Each sale generates funds for literacy and education initiatives in the U.S., the UK, and around the world. Since its launch in 2003, Better World Books has raised $33 million for libraries and literacy, donated over 32 million books, and reused or recycled more than 397 million books.

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