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Weight is the amount of matter in an object. A scale is a device used to measure weight. Weight is measured using
the same systems used for measuring length. The standard U.S. Customary
Unit for measuring weight is the Pound. The standard unit of
the Metric System is the kilogram. The tables below show these two systems
of measurement. |
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When
To Use Which Unit?
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When you measure the weight of a very small object, such as a leaf, the best unit to use is a milligram or fractions of an ounce. The weight of a larger object, such as an orange, is measured using grams or ounces. Large objects, such as a person, can be measured using kilograms or pounds. When measuring even bigger objects,
like a hippopotamus, the best units to use are tons or kilograms. |
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Table
of Weight Conversions
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Metric System
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