Ebook: Check It Out! Light & Sound. Серия книг о законах физики для детей

Bearport Publishing 2005, Категория: обучающая литература для детей, ISBN: 978-
1597160605. c. 31
Harnessing children's natural curiosity about the world, this engaging series introduces kids to key science concepts through a simple question-and-answer format. The mechanics of sunlight, darkness, vibrations, and sound are simplified for young readers in this illuminating reference.