Freezing of water and evaporation of water are both physical changes.

Yes, that's correct. Freezing of water and evaporation of water are both examples of physical changes.

Freezing: This is the process where liquid water turns into solid ice as it loses heat energy. The molecules in liquid water slow down and arrange themselves into a fixed structure, forming ice. This is a physical change because the chemical composition of water remains the same; only its physical state changes from liquid to solid.

Evaporation: Evaporation is the process where liquid water changes into water vapor due to the gain of heat energy. The water molecules gain enough kinetic energy to overcome the forces of attraction holding them together in the liquid phase, and they escape into the air as vapor. Evaporation is also a physical change because the substance (water) remains the same chemically; only its physical state changes from liquid to gas.

In both cases, the molecules involved remain the same, and there's no alteration in the chemical composition of water. Therefore, they are classified as physical changes.