It is a change of state.
Freezing water is an example of a physical change because the material contents of the water has not changed.
Boiling (or freezing) water (the change to steam or ice).
a physical change
No because in an exothermic change energy is released not taken in. Melting would be an example of exothermic change.
Steam changing to liquid water is an example of condensation, which is the process of a gas turning into a liquid. This occurs when the temperature of the gas decreases to the point where it can no longer maintain its gaseous state and transforms into a liquid.
Freezing is a physical change because although change obviously takes place, what something is made of does not change when it freezes. Liquid water and ice are the same substance for example.
Freezing water of is an example of physical change.
Freezing water is an example of a physical change because the material contents of the water has not changed.
Solidification, freezing, a change in state...
An example of a physical change that can be reversed is melting ice into water; this can be reversed by freezing the water back into ice. An example of a physical change that cannot be reversed is breaking a glass; once the glass is shattered, it cannot be returned to its original form.
Melting, freezing, boiling, evaporation are physical change
Frost is a phase change of a gas to a solid (deposition). Water vapor turns directly to ice.