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Why Ice Floats On Water

Ice Floats

Ice floats in water because ice is less dense than the liquid form it means the solid form of water is lighter. This is unusual because in other substances it is just the other way round. Initially, water behaves like other substances. When it is heated it expands and evaporates. When it is cooled its volume becomes smaller. After a certain temperature however water becomes ‘wayward’. At 4 degree it reaches its densest state. On further cooling, it expands again. Thus water behaves abnormally. This is also known as anomaly of water. On freezing i.e. at 0 degrees its volume increases again. This is the reason why water bottles full of water burst if they are kept in deep freezer for a long time.

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