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Items float to the top if their density is less than the density of what they are floating in, and items hang in the middle if the densities are the same. Adding in the salt gives the water a greater density than the water did had before, so the item doesn't float in freshwater. ... How does salt water make things buoyant?
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wiki.answers.com/Q/Why_do_things_float_better_in_salt_w...
wiki.answers.com/Q/Why_do_things_float_better_in_salt_water_rather_than_fresh_water
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Buoyancy is related to an object in water. The buoyancy of an object floating in water is greater in salt water than in fresh water due to the dissolved salt giving the water a greater density. Buoyancy is the upward force exerted by the wa...
http://answers.yahoo.com/question/index?qid=20090512193...
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On average, sea water is 3% denser (more mass per unit volume, thus more weight per volume) than fresh water, so less of it must be displaced to provide a buoyant force sufficient to balance the weight of the object.
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www.seed.slb.com/qa2/FAQView.cfm?ID=899
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Answer: Because saltwater has a higher density than fresh water, your body will displace a greater mass of saltwater than of freshwater. The buoyant force is the weight of the liquid displaced, so the greater the mass displaced, the greater the weight and the greater the buoyant force.
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academic.brooklyn.cuny.edu/physics/kelly/core72/hwsol3....
academic.brooklyn.cuny.edu/physics/kelly/core72/hwsol3.htm
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The human body is more buoyant in saltwater than in freshwater. ... The Dead Sea, on the other hand, has a 23-25% salt volume, with bromineexisting at a level roughly 100 times greater than normal seawater. Also,except for plankton, no living organisms live in the Dead Sea.
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www.freepatentsonline.com/6032304.html
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The present invention relates to a swimming pool containing saltwater to give buoyancy, which provides a plurality of sections for holding saltwater, ... However, swimmers normally only wade and relax in such swimming pools rather than swim in them. ... The human body is more buoyant in saltwater than in freshwater.
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www.freepatentsonline.com/EP0894173.html
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Anglers starting off with saltwater fly can use their old freshwater gear, the heavier the better, but corrosion will be a problem. "I've dissolved a few ... "You don't need a floating line in saltwater because it is more buoyant than freshwater. Intermediate and sinking-tip lines enable you to fish the surface area."
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www.nzherald.co.nz/section/story.cfm?c_id=4&objectid=10...
www.nzherald.co.nz/section/story.cfm?c_id=4&objectid=10413442
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The human body is more buoyant in saltwater than in freshwater. ... However, the Red Sea has 40 g of salt per one liter of saltwater, while the Baltic Sea has only 7 g. The Dead Sea, on the other hand, has a 23-25% salt volume, with bromine existing at a level roughly 100 times greater than normal seawater.
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www.patentstorm.us/patents/6032304/description.html
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Because the density of saltwater is greater than the density of fresh water, objects in seawater float higher than they do in freshwater. Buoyancy is why ships float. Ships float because the force of gravity pulling the ship down is less than the force of the water pushing the ship up.
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www.msc.ucla.edu/oceanglobe/pdf/densitysalinity/density...
www.msc.ucla.edu/oceanglobe/pdf/densitysalinity/densityintro.pdf
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