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The specific gravity of a substance is a comparison of its density to that of water. Imagine a gallon bottle filled with water, a second filled with feathers, a third filled with lead weights. There are equal volumes of material present, but the bottle with the feathers will weigh less than that containing water;
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geology.csupomona.edu/alert/mineral/gravity.htm
geology.csupomona.edu/alert/mineral/gravity.htm
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An introduction and definition of density, specific weight and specific gravity - formulas with examples ... The Specific Gravity - SG - is a dimensionless unit defined as the ratio of density of the material to the density of water at a specified temperature. Specific Gravity can be expressed as...
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www.engineeringtoolbox.com/density-specific-weight-grav...
www.engineeringtoolbox.com/density-specific-weight-gravity-d_290.html
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Specific gravity of some common liquids and fluids as alcohol, oils, benzene, water and many more ... Fluid Temperature; (oC) Specific Gravity; SG...
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www.engineeringtoolbox.com/specific-gravity-liquids-d_3...
www.engineeringtoolbox.com/specific-gravity-liquids-d_336.html
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Relative density - Wikipedia, the free encyclopedia
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Relative density , sometimes called specific mass or specific gravity , is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific g...
en.wikipedia.org/wiki/Relative_density
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The term specific gravity is used to describe the weight or density of a liquid compared to an equal volume of fresh water at 4°C (39° F). If the liquid you are comparing will float on this water it has a specific gravity of less than one (1). If it sinks into the fresh water the specific gravity is more than one.
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www.mcnallyinstitute.com/07-html/7-12.html
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Specific gravity is a measure of the density of a mineral. At times it is such a useful property that it is the only way to distinguish some minerals without laboratory or optical techniques. Gold (pictured) can easily be distinguished from "fool's gold" by specific gravity alone, although there are many other ways.
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www.galleries.com/minerals/density.htm
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Gravity (alcoholic beverage) - Wikipedia, the free encyclopedia
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Gravity , in the context of fermenting alcoholic beverages, refers to the specific gravity of the wort or must at various stages in the fermentation. In the following we will emphasize the brewing in...
en.wikipedia.org/wiki/Gravity_(alcoholic_beverage)
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Specific gravity is the heaviness of a substance compared to that of water, and it is expressed without units. In the metric system specific gravity is the same as in the British system.
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www.essex1.com/people/speer/density.html
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