Includes index.

"This book introduces readers to the science behind aviation. Students learn about the four forces of flight: gravity, lift, drag, and thrust. Vivid photographs and easy-to-read text aid comprehension for early readers. QR Codes in the book give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state standards." -- Provided by publisher.

Four forces -- Overcoming gravity -- Achieving lift -- Drag and thrust.