1. Metric System

2. American Chopper Why Science Uses The Metric System Why Science Uses The Metric System

3. Metric system English system  Used in most countries around the world  Based on the power of ten Ex: 1 cm = 10 mm 1 m = 1000 mm 1 m = 1000 mm  Distance  meters  Volume  liters  Mass  grams  Used in United States, Berma, Liberia  No consistent basis Ex: 1 ft = 12 in 1 mi = 5280 ft 1 mi = 5280 ft Distance  feet, inches, miles, yards Volume  cups, quarts, gallons Mass (weight)  pounds, ounces

4. Should the US change to the metric system? 1. Yes 2. No 3. Abstain

5. What do the symbols mean? cgkLmmgm

6. Metric prefixes k h D base unit d c m kilo hecto deka grams deci centi milli liters meters ● ● ● ● ● ● ●

8. 0.25 cm = ______ dm 1. 250 dm 2. 25 dm 3. 2.5 dm 4. 0.025 dm 5. 0.0025 dm 6. 0.00025 dm

9. 73 hg = ______ dg 1. 73000 dg 2. 7300 dg 3. 730 dg 4. 73 dg 5. 7.3 dg 6. 0.73 dg 7. 0.073 dg 8. 0.0073 dg