Main Concept: Variances in wind currents can be used to create different forms of transportation such as soaring, gliding and hot air balloons. Even inanimate objects like a kite depend on the wind to function properly. Wind power is introduced with Flying Scooters at an amusement park. Hopey learns about the sport of ""soaring"" by taking a trip in a glider sail plane. Repeat of a sequence from the episode Hot/Cold: Temperatures on Earth/In Space: In the mountains of Colorado, Lisa participates in a balloon race to better understand why a hot-air balloon rises. David visits a local Kite Club in Tokyo where he meets a Japanese ""kite doctor,"" who uses science to improve a kite's performance.