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A gram is a unit of measure part of the metric system. It measures mass, or how much matter is in something. The symbol g often means the gram. One gram used to be defined as the mass of one cubic centimeter of pure water at 3.98 degrees Celsius. Now one gram is defined as 1/1000 kilogram.[1] A milligram is 1/1000 of a gram.

References[change | change source]

  1. "Metric system - Facts from the Encyclopedia". Yahoo! Education. Retrieved 3 June 2013.