Specific gravity facts for kids
Specific Gravity (SG) is a special case of relative density.
It is defined as the ratio of the density of a given substance, to the density of water (H2O). Substances with a specific gravity greater than 1 are heavier than water, and those with a specific gravity of less than 1 are lighter than water.
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In Spanish: Densidad relativa para niños
Specific gravity Facts for Kids. Kiddle Encyclopedia.