Topic: Miscellaneous (Others Question of English Grammer),

Best Answer Explained in Below-:

When water freezes, it undergoes a unique transformation that results in a decrease in density. In its liquid form, water molecules are in constant motion, allowing them to come quite close together. However, as the temperature drops and water begins to freeze, the molecules start to arrange themselves into a crystalline structure characteristic of ice.

This crystalline structure is held together by hydrogen bonds, which forms an open, hexagonal lattice. While this arrangement is stable and helps hold the molecules at regular intervals, it also means that the molecules are spaced farther apart than they are in the liquid state. As a result, the same volume of ice contains fewer water molecules than the same volume of liquid water, leading to a lower overall density.

This is why ice floats on water—a phenomenon that is significant for aquatic life during freezing temperatures. The lower density of ice allows it to remain on the surface, creating an insulating layer that maintains a more stable environment for the organisms living below.