When we go outside, sometimes we can have a lot of fun when it is windy. We can becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder a kite, play a tough game of becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder, or sail a boat in the wind. Ever becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder why there is wind anyway? Where does it come from and where does it go?

Warm air rises. When that becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder, cold air rushes in to becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder the space. Gravity pulls the denser cold air becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder it is more dense. When the air becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder, we feel this as wind. We can measure the becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder in air pressure or the becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder of the air with an instrument called a barometer. Wind is becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder only used for fun but also can becausecatchdensitydifferencesfillflyhappensmovesnotpowerwonder homes if you are connected to a wind generator in a wind farm!