Introduction
Ice floating on water is a well-known phenomenon. It is interesting to note that most substances become denser and sink when they freeze, but water behaves differently. This property of water has many implications, such as the survival of aquatic life in cold weather and the formation of icebergs.

Explanation
The reason why ice floats on water can be explained by the unique structure of water molecules. Water molecules are made up of two hydrogen atoms and one oxygen atom. They are held together by covalent bonds, which means that the electrons are shared between the atoms.

The shape of the water molecule is bent, with the two hydrogen atoms on one side and the oxygen atom on the other. This results in a slight negative charge on the oxygen side and a slight positive charge on the hydrogen side. This property is known as polarity.

Density of Water and Ice
Water is a remarkable substance because it reaches its maximum density at 4°C. When water is cooled below 4°C, it begins to expand and becomes less dense. This is because the water molecules begin to form a crystal lattice structure as they slow down.

The crystal lattice structure of ice has a lower density than liquid water, which is why ice floats on water. When water freezes, the water molecules form a crystal lattice structure that has empty spaces or gaps between the molecules. These gaps make ice less dense than liquid water, causing it to float.

Implications
This property of water has many implications in our daily lives. For example, it allows aquatic life to survive in cold weather. When water freezes, the ice floats to the surface, forming a layer that insulates the water below. This layer of ice acts as a barrier, preventing the water below from freezing solid and allowing the aquatic life to survive.

Ice floating on water also plays a role in the formation of icebergs. When a glacier or ice sheet melts, the ice floats on the water, forming an iceberg. The size of the iceberg depends on the amount of ice that melts and the shape of the underwater part of the iceberg.

Conclusion
In summary, ice floats on water because the crystal lattice structure of ice has a lower density than liquid water. This is due to the unique structure of water molecules, which makes water reach its maximum density at 4°C. This property of water has many implications in our daily lives, including the survival of aquatic life in cold weather and the formation of icebergs.

The molecules in ice makes cage like structures with lot of vacant spaces, this makes ice float on water