Scientific Measurement

The Metric System (System Internationale)  International standardized system of measurement  Adopted in France in 1791  Most common system of measuring units used by most of the world  Based on the number 10  Uses decimals (units are based on multiples or sub- multiples of 10)  Known as SI units

Everyday Uses of Metric System

Basic Units  Mass: gram (g)  Volume: liter (l)  Length: meter (m)  Temperature: Celsius/Centigrade o C

Mass: gram  Divisions of gram Decigram: 10 divsions of gram Centigram: 100 divsions of gram Milligram: 1000 divisions of gram

Volume  1 ml (milliliter) = 1 cc (cubic centimeter)  Divisions of liter Deciliter: 10 divisions of liter Centiliter: 100 divisions of liter Milliliter: 1000 divisons of liter

Length: meter  Divisions of meter Decameter: 10 divisions of meter (width of hand) Centimeter: 100 divisions of meter (width of index finger) Millimeter: 1000 divisions of meter (width of side of dime)

Temperature: Celsuis  Important temperatures Boiling point H2O 100 o C Body temp. 37 o C Room temp. 70 o C Freezing point H2O 0 o C

Common SI Prefixes

Eventually we will have to exchange our feet for meters.