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This Concept Map, created with IHMC CmapTools, has information related to: Measurement, Measurements always have Precision, Measurements that agree with one another have high Precision, Derived Units can be volume - cm3 density - g/mL speed - m/s, Units can be in The Metric System, The English System has Basic Units, The Metric System uses Prefixes, Calculations can be Additions & Subtractions, Calculations can be Divisions & Multiplications, Basic Units in the metric system mass - g length - m time - s temperature - K amount of substance - mole luminous intensity - candela, The Metric System has Derived Units, Divisions & Multiplications carry out uncertainty by the number of Significant Figures, Calculations report results with the right number of Significant Figures, Units can be in The English System, Measurements use Units, Additions & Subtractions carry out uncertainty by the decimal places Decimal Places, Prefixes denote powers of ten nano - 1/1,000,000,000 micro - 1/1,000,000 milli - 1/1,000 centi - 1/100 deci - 1/10 deca - 10 kilo - 1,000 mega - 1,000,000 giga - 1,000,000,000, Rounding Off to the right number of Significant Figures, Calculations give Results, Significant Figures are a reflection of Uncertainty, The English System has Derived Units