Why is sand heavier in water?

Question

Why is sand heavier in water?

Answer 1

Sand is not 'heavier in water'.



Sand grains are more dense than water and will, therefore, sink in water.



Density of quartz sand is 2.65g/cc, density of fresh water (at ATP) is 1g/cc.

(Sand also sinks in hot water, cold water, salty water and even frozen water (although the last is very slow and is not strictly sinking, but due to locallised thawing due to increased pressure due to weight of solid object resting on ice).

Answer 2

Sand is very porous and water can get trapped between the pores of sand. That is why when you put dry set in water, the wet sand is heavier. There is water present in the sand and it makes it heavier.

Answer 3

As sand sinks in water, the sand must be heavier than water, thus a volume of sand will be heavier than the same volume of water.



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Answer 4

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