1. SI Measurement Le System international d’Unites Internationally agreed –75 000 not 75, 000 –Meters not miles –Liters not gallons

2. Units? mass length Volume Time Amount of a substance

3. Other Units Derived unit – combination of units like in velocity m/s 2, or pressure kg/m s 2 Density – g/cm

4. Density D = m/v Ratio of mass to volume The mass divided by the volume Physical property

5. Mass kilogram is the standard –1000 grams We use grams – more useful in science class. King Henry Chart –Remember Mass measure of matter, does not depend on gravity Weight – measure of the gravitational pull on the mass

6. Mass and weight mass is the amount of matter and will not change with location Weight is a measure of gravity and will change with location

7. How to convert King Henry chart – memorize King Henry drank uho delicious chocolate milk Kilo Hecto daka ______deci centi milli

8. Larger prefixes Mega Giga tera

9. Smaller prefixes Micro Nano Pico Femto atto

10. Multiple conversions Affects density, area etc If the unit is squared, you need to convert twice. If the unit is cubed you need to convert _______________

11. Practice Pg 60. #31-34