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| What
are the units of mass? In the metric system the basic unit for measuring mass is the gram. The metric system is used all over the world. It is used in science to make measurements, and in many countries to measure ordinary things. In the metric system, 1000 milligrams = 1 gram, and 1000 grams = 1 kilogram. In our English system of measures, 16 ounces = 1 pound and 2000 pounds = 1 ton. Which is easier to use? In the metric system, the conversion is much easier. To convert from one unit to another, you either multiply or divide by some multiple of 10! The metric prefixes in this table are the same for every basic unit of measurement. These are the most common prefixes, but there are others. For example, atto- is the prefix for 1/1,000,000,000,000,000,000! Metric Prefixes: Names and Meanings
For grams, the basic metric unit of mass, the names for different multiples are:
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| Objectives | Pre-Test
| Presentation | Activity
| Post-Test |
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