1. The Metric System

2. Why do we still use the Old English System? Traditional U.S. labeling, manufacturing, and industrial measures are obstacles to conversion Conversions between English units (based on the measures of England ’ s Henry VIII) is cumbersome and not uniform Much of the original measures are antiquated, on not used today (drams and grains, furlongs, etc.) What other countries use this system?

3. History of the Metric System 1970 – French Academy of Sciences created a standard for all measures and weights This ‘System International’ or SI system of measures was both simple (a base10 system) and scientific (based on planetary measures – unit length is a portion of the Earth’s circumference)

4. Base Units Length = The METER Times (x) 1000 Times (x) 1/100th

5. Base Units Mass = The GRAM Times (x) 1000 Times (x) 1/1000th The milligram (or 1 mg) is easily converted between distance, volume and mass! 1cc = 1m l= 1g of water

6. Base Units Volume = The LITER Times (x) 1/1000th

7. Base Units Temperature = Degree CELSIUS Room Temperature 22 0 C Body Temperature 37 0 C Celsius to Fahrenheit Cx9/5 +32=F

8. Metric Prefixes KiloHectoDecaBASEdecicentimilli (K-)(H-) (D-) or (da) M, L, g(d-)(c-)(m-) 1000x100x10x11/10th1/100th 1/1000 th LARGER smaller “King Henry Died By Drinking Chocolate Milk”