A corked bottle full of water will break when frozen because the volume of water increases on freezing.

Water is an exception to the general behavior of most substances when it freezes. As water freezes, it expands and increases in volume instead of contracting. This expansion is due to the formation of ice crystals, which have a specific arrangement of water molecules that requires more space compared to the liquid state.

When water inside a bottle freezes, the expansion of the water exerts pressure on the walls of the bottle. If the bottle is tightly sealed with a cork or cap, the pressure buildup can become too high, leading to the bottle cracking or breaking.

The expansion of water upon freezing is a unique property that is responsible for various natural phenomena, such as the formation of ice in cracks and crevices, leading to their enlargement over time.

Therefore, the volume of water increases on freezing, and this expansion can cause a corked bottle full of water to break when frozen.