Assemble your very own Flying Machines with this educational and entertaining "interactive activity guide!" Along with a book that explains aerodynamics and the evolution of human flight, this kit also includes instructions and materials to create five different airborne vehicles: two paper airplanes and three propeller-powered balsa-based models—including a whirlybird helicopter! Dive into the book to learn about the science behind flying, then build your own aircraft and test the science for yourself! Perfect for budding pilots or engineers, ages 8 and up.