Portions of the skeltons, musculature, circulatory systems, and the other major internal organs of 21 assorted creatures are exposed in large, colorful cross sections.
Explores the history of electricity, and contains full-color captioned photographs and text that explains such topics as the invention of electric motors, how electricity can transmit voices and images across an ocean, magneto-electric machines, and much more.
Uses brief text, illustrations, quizzes, games, and experiments to explain all about sound, which sounds animals and humans can hear, how sound can smash matter, and how it can heal.