Book excerpt: How does a chameleon change colors? How do astronauts train for a space mission? How do diamonds form? How does Wi-Fi work? The best-selling book in TIME For Kids' Big Book of Questions series is newly revised with updated information, photos, illustrations, and graphics to answer over 500 new questions in popular subject areas: Animals, Space, History, Science, Technology, Sports and more. Presented in an easy-to-follow format, this fun, must-have reference book will appeal to a young child's sense of curiosity. Kids can dive into the book at any point and learn over 1,001 amazing facts to impress their parents, teachers, and friends with their new found knowledge.