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Cold water is more dense than warm water so the cold water has to sink to the bottom which causes a density current.

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12y ago

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What happens to cause a convection current in water?

Water is a bad Conductor. Note this point! When water at the bottom of the vessel gets heated first, it expands. So its density goes lower. But the comparatively cold water at the top would be with higher density and so they would come down allowing lower dense water to move up. This gets repeated and thus convection current gets produced.


What would a density of a person be?

The density of water is 1.0 and people are made mostly of water but they do float in water (just) so the density of a person is lust less than 1.0. I can not give you a precise answer because of cause your density would change as you breath in and out.


How would water density compare to ocean water?

The water would have the same density anywhere it is.


If you were to ignore the water in the pan on the scale while measuring the mass of a mineral what would be the effect on your density calulation?

The water would add excess mass to your calculation for density. This would cause the density to be greater than the true density.Density = mass / volumeSo if the mass is greater than the true value and the volume is the same, then the density increases.


What would cause a chemical change water?

Adding electric current to separate hydrogen from oxyge.


The density of water is equal to 1.0gcm3. a substance with density equal to cm would be what in water?

If a substance has a density of 1.0 g/cm3, it would have the same density as water. This means that the substance would neither sink nor float in water, as it would be neutrally buoyant.


Why would a glass marble sink in water but floats in mercury?

The cause is the difference in density; the density of water is 1 g/cm3 and for mercury is 13,5 g/cm3.


Does slow moving water cause erosion or fast moving water?

yes and no well it cant cause fast water and it will weather slower then as if water would at a fast current so it will weather just slow.


What can cause an increase in the density of water?

The density of water is only 1 g/cm3 at 4 degrees Celsius. Any other temperature, and the density is less than 1. So technically, if it was not 4 degrees, you would change its temperature to increase its density. The only other way to increase the density is to add things to/dissolve things in the water, such as salt, sugar, or anything else soluble in water.


Is the density of rubber stopper is denser than the density of water?

No, the density of a rubber stopper is less than the density of water. Rubber has a lower density compared to water, so a rubber stopper would float on water.


What would happen if you tried to find the density of an object with a density less than water?

If you try to find the density of an object with a density less than water, the object will float in water. This indicates that the object is less dense than water. To find the density of such an object, you would divide the mass of the object by its volume.


How would you tell tap water and seawater apart?

The density of the fresh water is less than the density of the salt water.