1. Metric Conversions Ladder Method Adapted from a presentation from: T. Trimpe 2008 http://sciencespot.net/

2. Science Measurements We Commonly Use in Biotech Liters for Liquids abbreviated with L Grams for Mass abbreviated with g

3. KILO 1000 Units HECTO 100 Units DEKA 10 Units DECI 0.1 Unit CENTI 0.01 Unit MILLI 0.001 Unit Liters Grams Ladder Method How do you use the “ladder” method? 1 st – Determine your starting point. 2 nd – Count the “jumps” to your ending point. 3 rd – Move the decimal the same number of jumps in the same direction. 4 kg = _________ g 1 2 3 How many jumps does it take? Starting Point Ending Point 4. 1 __. 2 3 = 4000 L MILLI 0.001 Unit MICRO 0.0001 Unit

4. Try these conversions using the ladder method. 1000 mg = _______ g 1 L = _______ mL160 cm = _______ mm 14 kL = _______ mL109 g = _______ kg 250 L = _______ kL Conversion Practice Compare using, or =. 56 mL 6 L 7 g 698 mg MICRO 0.001 Unit

5. Write the correct abbreviation for each metric unit. 1) Kilogram _____ 4) Milliliter _____ 7) Kiloliter _____ 2) liter _____ 5) Milligram _____ 8) Gram _____ 3) Microgram _____ 6)Microliter _____ Try these conversions, using the ladder method. 10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 uL = _______ mL 11) 104 kL = _______ L16) 198 g = _______ kg 21) 2500 g = _______ kg 12) 480 ug = _____ g 17) 75 mL = _____ L 22) 65 g = _____ mg 13) 5.6 kg = _____ g 18) 50 uL = _____ L 23) 6.3 ug = _____ mg 14) 8 mL = _____ uL 19) 5.6 g = _____ ug 24) 120 mg = _____ g Metric Conversion Challenge