This book looks at the aerodynamics of helicopters and some of the latest models, and is fully loaded with fun features such as sidebars, fact boxes, and cool cutaways.

Learn about the history of jet flight and the astonishing technology that makes it possible. Detailed cutaways simplify the information while fascinating facts are peppered throughout the narrative through fact boxes and sidebars.

"This photo-illustrated book introduces early fluent readers to the science and engineering behind cars. Includes glossary and index."--

"This photo-illustrated book introduces early fluent readers to the science and engineering behind hot air balloons. Includes glossary and index."--

"This photo-illustrated book introduces early fluent readers to the science and engineering behind speedboats. Includes glossary and index."--

"In Light Bulbs, early fluent readers learn about the science, engineering, and technology behind light bulbs. Vibrant, full-color photos and carefully leveled text engage young readers as they learn about this important technology. Children can learn more about light bulbs using our safe search engine that provides relevant, age-appropriate websites. Light Bulbs also features reading tips for teachers and parents, a table of contents, a glossary,...