WindHave you ever felt the wind tickle your face or heard it whistle through your window? Did you know that some wind travels faster than a car? Read inside to find out more about what causes wind, and learn how to make your own weather vane!Have you ever felt the wind tickle your face or heard it whistle through your window? Did you know that some wind travels faster than a car?Air is always moving. We can't see air moving, though we can watch it push clouds across the sky, or shake the leaves of a tree. We call moving air the wind. In this enlarged edition, find out about the wind - what causes it, how it can be used to help us, and how it affects the weather.Arthur Dorros shows you how to make your own weather vane, and in simple terms, with playful illustrations, he explains just what makes the wind that blows all around us.