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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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∙ 11y 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.
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.
How would you know if something would float on water?
Compare the density of the object in question to the density of water. If its density is less than water, it will float. For example, oak floats because its density is 0.7 g/cm³ and the density of water is 1 g/cm.If the density of an object is greater than water, it will sink.
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.
If the relative density of gold is 19.3 what would be its density?
relative density is related to the density of water. i.e. a relative density of 19.3 means that it has a density 19.3 times the density of water. The density of water is 1g/ml therefore the density of gold is 19.3g/ml
How would you tell tap water and seawater apart?
The density of the fresh water is less than the density of the salt water.
What happens to low density water?
If the low density water was put over another fluid of lower density it would sink but if it was put over a high density fluid like mercury it would floats.
