Q:

Why is it good that ice floats and doesn't sink?

A:

Quick Answer

It is good that ice floats on water because plants and fish can survive in water that is covered by the floating ice sheet. Water in its solid state becomes less dense than in its liquid state, unlike other matter types, due to its hydrogen bonding.

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Full Answer

In the winter, the air gets cooler initially, then the lake water gradually cools from top to bottom. When the lake water reaches 4 degrees Celsius, it attains maximum density. When the temperature of the top of the lake starts falling below 4 C, it turns into ice that floats and serves as an insulator for the water underneath. As the water underneath remains at 4 C at maximum density, it becomes congenial for the survival of the organisms.

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Related Questions

  • Q:

    Why does ice float in water?

    A:

    Ice floats in water because it less dense than water thanks to a special kind of chemical bonding known as hydrogen bonding. Typically solids are denser than liquids of the same substance, such as solid lead, but that is not the case with water and ice.

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  • Q:

    Why does ice have a lower density than water?

    A:

    The hydrogen bonding gives water a structure with considerable space between the molecules, making it expand in size and become less dense in a solid state than in a liquid one. Because water is denser than ice, ice cubes float on the surface of water. Hydrogen bonds link each water molecule to an average of 3.4 other water molecules, and the lattice that forms when water freezes has a lot of empty space inside it.

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  • Q:

    Does ice weigh more than water?

    A:

    In general, if ice and water have the same volume, then the ice weighs less. This is because ice is less dense than water and occupies more space. Therefore, a gallon of ice weighs less than a gallon of water.

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  • Q:

    Does ice have more mass than water?

    A:

    If a person compares the same amount of ice and water, ice does not have more mass than liquid water. However, the volume of the ice is greater than that of liquid water. A reason for this occurring involves the molecular structure of these two different states of water.

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