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Water is rather unique among substances. It increases its density with cooling until it reaches 4oC (Above freezing) at that time getting cooler lowers its density. As a consequence the coldest water floats on top of the above freezing point water. The ice (when it forms) is even less dense and floats at the top of the pond on the colder and warmer water. As a consequence the water that freezes is nearest the top.
Even if the water were to be cooled from the bottom, the coldest water would float to the top and when the whole pond became 0°C the ice would float to the top as it formed. In some cases where rocks are below the freezing point (exposed to the air part of the time, ice can form and stick to the rocks under water. There is one unusual case where ice crystals form as needle shaped crystals in the water below the surface. This is called frazil ice. These crystals mat together and block inlet pipes and simiar structures.
In most ponds, however, the water is losing the majority of its heat to the colder air above it, so the ice would form there. And, being less dense than water, the ice would stay on the top as does the coldest water.
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What will freeze first the ocean or pond?
The ocean, in a pond only the top layer will freeze!
Is a pond cold?
Fish generally go down to the bottom of the pond where the water does not freeze and sort of hibernate for the winter. That is why it is important to make your pond so deep that the water will not freeze all the way to the bottom. (www.rosepond.com)
What would happen to shallow pond that frozen in winter?
In extreme freezing conditions, a shallow pond may freeze down to the bottom. If the pond is at least 18 inches deep, the surface may freeze down to a couple of inches.
Is their more pond cells on the top of a pond or bottom or middle?
in the middle because tthere is more water.
How aquatic life is possible in frozen pond?
Aquatic life is possible in a frozen pond because only the top of the pond is frozen. The fish live down at the pond bottom, where it is warmer than the top.
Does water in a pond freeze on the sides of the pond or in the middle first?
It freezes first on the sides where the water is very shallow, thereby less able to circulate heat up from the bottom to keep from freezing.
A pond food chain?
Every animal in the pond is part of the pond food chain. The animals at the top of the chain are large fish, and the animals at the bottom are bacteria and single-celled organisms.
How does a pond freeze?
By turning to ice
Why does it freeze at the bottom of the ocean?
The bottom of the ocean doesn't freeze.
What happens to fish when a lake freezes?
if it is a cosmetic pond put your fish in an aquarium and drain your pump so it doesn't freeze and break drain your pond
What happens when mixing anti-freeze with gasoline?
I suppose you will get 2-phase liquid: antifreeze at the bottom and gasoline at the top.
What is the area of Great Sandy Bottom Pond?
The area of Great Sandy Bottom Pond is 441,107.3500416 square meters.
