International System of Units SI Units A.K.A. The Metric System

Basics Based upon factors of 10 Base Units: –Length = Meter = Distance from point A to B –Mass = Grams = How much matter is in an object –Volume = Liter = Amount of space within something United States uses the English System

Basics Cont’d Most of the world uses the Metric System Can be found in the U.S., but where? –Examples: Why is there confusion about the metric System? Hint: think about purchasing Milk vs. Soda

Tools For Metric Measuring Tools to measure Mass: Triple Beam Balance Spring Scale Digital Balance

Tools For Metric Measuring (cont’d) Tools for measuring Volume: Metric RulerGraduated Cylinder We read the meniscus

Tools For Metric Measuring (cont’d) Tools for measuring length: Metric RulerMeter Stick

Metric System Symbols K = Kilo h = hecto da = deca d = deci c = centi m = milli

Larger Numbers Smaller Numbers HectoKiloDecaBase Units DeciCenti Milli Base Units

Metric System Summarized Base Units KiloHectoDecaDeciCentiMilli x x x x x x KingHenryDrank Bro wn DeliciousChocolateMilk

Example 950 g = ___________ kg g Identify the location for the decimal based upon the example g KHDB. DCM g K. HDB. DCM Move the decimal to the correct location based upon the problem. 950 g = ___.950__ kg

You try: 1) 86,000l= _____________________ kl 2).98765kg= ____________________g 3) mg= _________________ _cg 4) mm= _________________km