Air is all around us. You can't see it, but you can feel it when the wind blows. read on and find out why air moves and how we use air to fly. Air and Flight offers and excellent introduction to the world of air, wind, planes, parachutes, helicopters, and windmills. Each carefully planned project describes what you need to do and is accompanied by a "Why It Works" panel explaining the scientific principles. Further ideas included with each project provide additional fun and information. The projects contain step-by-step instructions and explanations supported by colourful photographs and illustrations.