Metric Conversions

1. Metric Conversions T. Trimpe 2008 http://sciencespot.net/

2. What are Metric Conversions? • Sometimes we need to change from one measurement to another. • This is usually done because the unit that is used is either too big or too small for that type of measurement.

3. TOO BIG !!! 525,568 millimeters Sometimes the number is too big for the unit being measured.

4. Too Small 0.00654 km Sometimes the number is too small for the unit being measured

5. MetersLitersGrams How do you convert a unit 1st – Determine your starting point. 2nd – Count the “jumps” to your ending point. 3rd – Move the decimal the same number of jumps in the same direction. Starting Point Ending Point __. __. __. 3 2 1 3 3 1 1 1 4 km = _________ m How many jumps does it take? 4. = 4000 m 3 3

6. Compare using <, >, or =. 56 cm 6 m 7 g 698 mg Conversion Practice Try these conversions 0,001 1000 1600 1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm 14 km = _______ m 109 g = _______ kg 250 m = _______ km 14.000 0,109 0,25 < <

7. 3 3 Multiply Divide 3 3

8. 42 100000 Multiply 42 μm = dm 5 42. 5 Number of jumps 0.00042 dm Divide

9. Multiply 50 Gg = Dg 50 X 100000000 Number of jumps 50. 8 8 5000 000 000 Dg Divide

10. Metric Conversion Challenge Write the correct abbreviation for each metric unit. 1) Kilogram _____ 4) Milliliter _____ 7) Kilometer _____ 2) Meter _____ 5) Millimeter _____ 8) Centimeter _____ 3) Gram _____ 6) Liter _____ 9) Milligram _____ Try these conversions, using the ladder method. 10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm 11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km 12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg 13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm 14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g 2 160 5000 104000 0,198 2,5 4,80 0,075 65000 0,50 630 56000 0,008 560 0,12