What is the difference between physical and chemical transformations ?
During chemical transformations, substances change into other substances, which is not the case during physical transformations.
Is freezing a physical or chemical transformation?
It is a physical transformation.
What do you notice during freezing of water?
During freezing temperature does not change.
Why?.
A substance like water is constituted of identical molecules. They have to behave identically, so they all change state at the same temperature!