Packed with tons of "fun facts about how and why everything flies," this book features dozens of hands-on activities.

This lavishly illustrated book, filled with dozens of hands-on activities, is the much-awaited companion to the NASA-sponsored and enormously popular Internet textbook project (http: //wings.ucdavis.edu/). 138 color illustrations.

A guide to the world of flight documents the milestones in aviation history that changed the world, from the development of ballooning to the mission to Mars.

Ideal for today's young investigative reader, each A True Book includes lively sidebars, a glossary and index, plus a comprehensive "To Find Out More" section listing books, organizations, and Internet sites. A staple of library collections since the 1950s, the new A True Book series is the definitive nonfiction series for elementary school readers.