Perfume evaporating is it a chemical change or physical change

This is a physical change: a change of state: from liquid to gas. 

This is not a chemical change, as no chemical reaction takes place: the substance is the same, but it changes the state at which it is in: there is no reaction with other chemical substances. 

Wind will blow from one direction to another.

Answer/// he concludes that the atom particles can be broken due to the paddle wheel being moved by particles coming out of the metal;