2007-03-08 00:09:54 · 7 answers · asked by christian_cag 1 in Science & Mathematics ➔ Physics
The water at the bottom is benefitting from the warmth of the Earth. The water at the top is exposed directly to the cold air. As it gets colder, and stays cold longer, the ice will get deeper.
2007-03-08 00:23:57 · answer #1 · answered by Terri J 7 · 0⤊ 0⤋
Ice is less dense than water, so any ice crystals that form would float to the top. The layer of ice then acts as an insulating barrier keeping the bottom from freezing.
It is interesting to note that this is unusual behavior (most materials are denser as a solid).
2007-03-08 01:30:39 · answer #2 · answered by AskBrian 4 · 0⤊ 0⤋
This is one of the most improtant consequences of the fact the ice expands as it cools below 4 C. This means that ice floats, and the loating ice insulates the underlying water. If this did not happen there would be no life in lakes or seas tht freeze.
2007-03-08 00:58:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Because the ice that forms on the lake acts as an insulator, thereby protecting the water below from freezing
2007-03-08 00:13:30 · answer #4 · answered by armyfiredawg3 3 · 0⤊ 0⤋
1. The cold wind hits the surface and freezes the surface water only.
2. Deeper you go, warmer it is
2007-03-08 00:13:35 · answer #5 · answered by gangico 3 · 0⤊ 0⤋
lake water freeze due to low atmospheric temperature and only the top surface is near the atmosphere and so....
2007-03-08 00:15:59 · answer #6 · answered by KingSAT 2 · 0⤊ 0⤋
a similar place they stay interior the summertime, they only spend extra time in thier dens. in the event that they're floor squirrels, they commonly hibernate, in the event that they're tree squirrels they in many situations scatter-hoard meals and spend a snug iciness in thier drey eating the meals and popping out for thier stashes on intense-high quality days.
2016-11-23 15:04:38 · answer #7 · answered by Anonymous · 0⤊ 0⤋