How does the water in the top of cold regions get freezing, but the water below remain warm?

Question

How does the water in the top of cold regions get freezing, but the water below remain warm?

Answer 1

Becuse of ananymus expantion of water

Answer 2

The closer to the ground the warmer it is, regarless of sunlight exposure.

Answer 3

I think you are probably referring to when ice forms over the top of a body of water in cold regions. When the ice forms over the water, it creates sort of an insulation effect and keeps the water down below from getting too cold....and then all the aquatic creatures can still live.

BTW, with other substances, the frozen form is more dense and would therefore sink to the bottom of a container filled with the same liquid form. Water contains special hydrogen bonds that makes the atoms in the frozen form space farther out making it less dense, and that's why it floats. Life as we know it would not work without these hydrogen bonds.

Answer 4

The water on top is exposed to the cold air. When it freezes the ice acts as an insulator.