A paper airplane is a simple flying toy made by folding a sheet of paper into a streamlined shape resembling an airplane. It can be launched by hand, gliding through the air for a short distance before descending to the ground. Paper airplanes are often created as a form of entertainment or as a playful way to explore aerodynamics. They can come in various designs, from basic dart-like shapes to more intricate models with wings and flaps. Despite their simplicity, paper airplanes can provide hours of fun and experimentation for people of all ages.