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Will a tank full of water and a tank filled with water and fish swimming weigh the same on a scale?

That depends on the weight of the fish as compared to the weight of the water their bodies displace. If it's a heavy, dense fish, then the tank with the fish would weigh more. If it's a light, less dense fish, then the tank with water only would weigh more. This assumes that the water displaced has been removed from the tank, right? If you are adding the fish to the water then I think it should increase the weight regardless of the density of your fish. The question then might be, does the fish weigh less when it is swimming than it would on a dry scale?


Which state of water allows fish to remain in a lake when winter temperatures are below 0?

I think you are probably talking about the fact that frozen water (ice) is less dense than liquid water, so freezing temperatures will enable the ice to form on top of the waterbody, but still allowing liquid water underneath so fish can survive. Also, ice is usually translucent, so it can still penetrate the ice, allowing algae to continue to photosynthesize, providing oxygen for the fish below.


How is ice floating on water helpful to fish that live in a lake?

The fact that ice floats means that the lake probably will not freeze solid all the way down. There will still be liquid water at the bottom of the lake where the fish can stay alive all winter.


Soild of commonly available compound is lighter than its liquid form?

Frozen water, ice, is less dense than the water from which it is formed. Which is a GOOD idea, otherwise if it were heavier, it would sink, and the fish would get stuck! (As my old teacher put it.)


How does whale floats in water?

A whale is not a fish. It does not have scales on it's body nor does it have gills. A whale is adapted to live in water because, whale has lungs, which it uses for breathing. Because of this, a whale has to swim to the water surface to breathe.

Related Questions

In and oil spill is the danger greater to birds and marine mammals than it is to fish and other organisms that live on the ocean bottom?

Yes, because oil is less dense than water, so it floats. The fish swim under while surface animals cannot.


Which state of water allows fish to remain in a lake when winter temperatures are below 0C?

Water expands as it freezes so becomes less dense than liquid water. Ice floats to the surface leaving liquid water (for fish to swim in) below the surface ice.


Why do dead fish sinks then floats on water?

Because fish breathe water so when their lungs fill up it makes them sink but when it empties they rise which is why dead fish come to the surface when they die.


Why do dead fish sinks first then floats on water?

Because fish breathe water so when their lungs fill up it makes them sink but when it empties they rise which is why dead fish come to the surface when they die.


Why does ice has a lower density than water?

Yes, ice is less dense than water. Ice will float on water because it is less dense than that water. Two related questions are linked below, and you can learn why ice is less dense than water by following those links.


Which characteristic of water is most helpful to fish in a lake?

When Frozen water floats on liquid water


Can you catch a dead fish?

Yes because the dead fish floats so it wont move


Is it bad if your fish turns upside down and floats to the top of the water?

its dead.. Sorry, but I think your fish is dead! :(


Ice floats on water because ice is less dence than water how helpful to fish that live in a lake?

The fact that ice floats on water is beneficial for fish living in a lake because it helps to insulate the water below from extreme temperature fluctuations. This allows the fish to survive in more stable and suitable conditions during the winter months when the surface may freeze over.


Is frozen water more dense than liquid water?

No. Below 4oC, water will start to become less dense as it freezes. This is due to hydrogen bonds. For more information, see the related question below.+++Very close. Water is at its maximum density at 4ºC, then becomes less dense as it cools further and freezes. Hence why ice floats, and why the consequent expansion can burst water-pipes.This property is vital in Nature because it stops lakes etc from freezing to the bottom. Therefore the fish can survive even under thick ice: they simply lie torpid in the deeper, denser, "warmer" water below.


What is the biological importance of ice being less dense than water?

As water freezes, the water molecules form a crystalline structure due to hydrogen bonding, causing the volume to expand as it becomes solid. This increase in volume causes the ice to be less dense than liquid water. The biological impact is that ice forms on the top of bodies of water, insulating the liquid water below, allowing aquatic organisms to survive during the winter.


Ice floats on water because ice is less dense than water. How is this helpful to fish that live in a lake?

Keeps the fish warm in the winter~apex