It's physical. It just changes from state of matter to another one.
When a tea kettle whistles, it is because the liquid inside turns to steam and is forced by pressure through the small opening in the kettle lid. This phase change is a physical change, not a chemical one.
No. the hissing and steaming is simply the Physical Change of water boiling, and the steam causes an increase in pressure thus the whistle. During a Physical Change, some properties of material change, but the composition of the material does not change.
Freezing is a physical change.
It's physical. It just changes from state of matter to another one.
This is a chemical change.
No, the drying of wet hair is a physical change, not a chemical change. The change in state from wet to dry is due to the evaporation of water and does not involve any chemical reactions altering the composition of the hair.
This is a physical change. Chemical changes are changes in "what things are made out of".
A physical change
Physical change of the paint, not the door.
It certainly is, unless you get it so hot it begins to char (then it becomes chemical).
it is a chemical change
Crushing charcoal into powder is a physical change, as it alters the size and shape of the charcoal without changing its chemical composition.