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Relative density

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Physical Properties: Relative Density #1

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Physical Properties: Relative Density #2

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Relative Density | Split Second Science

Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water. The term "relative density" is often preferred in scientific usage. It is defined as a ratio of density of particular substance with that of water.
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