Wind is caused by the movement of air.
When you use a fan, you make wind!
In the natural world, wind can take on many different forms, from a pleasant breeze to a devastating hurricane.
So, how are these movements of air formed?
A mass of air moves due to the temperature: it rises when it’s hot. Once at the top, it cools down, becomes heavier and starts to drop.
When a mass of air moves, another one takes its place. This movement is… wind!