Is it a chemical or physical change when water boils?

Boiling water is a physical change, as it rearranges molecules but does not affect the internal structures. Boiling water forces the water molecules away from each other as the liquid changes to vapor. read more

A chemical change is when the composition of a substance changes or 1 or more substances combine or break-up to form NEW substances (liquid water and gaseous water are both WATER). Thus, boiling water is a PHYSICAL change plain and simple. read more

This shows that boiling water results in no chemical change. If water is just heated to its boiling temperature then there is a physical change of rise in temperature and if it is boiled for some time then there is a physical change from liquid to gaseous state. read more