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

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.

Sometimes the number is too big for the unit being measured. 525,568 millimeters Sometimes the number is too big for the unit being measured.

Sometimes the number is too small for the unit being measured 0.00654 km Sometimes the number is too small for the unit being measured

How many jumps does it take? Giga 1 000 000 000 unit Mega 1000 000 unit kilo 1000 unit Hecto 100 unit Deka 10 unit Basic 1 unit Deci 0,1 unit Centi 0,01 unit Milli 0,001 unit Micro 0,000001 unit Nano 0,00000001 unit 3 3 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. 1 1 Meters Liters Grams 1 4 km = _________ m Starting Point Ending Point How many jumps does it take? 4. 1 __. 2 __. 3 __. = 4000 m 3 3

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

Multiply Divide 0.004 3 4 Km 40 Hm 3 400 Dm 4000 m 0,00025 0,0025 Giga 1 000 000 000 Mega (3) 1000 000 0.004 kilo 1000 u 4 Km Hecto 100 u 40 Hm Deka 10 u 400 Dm Basic 1 u 4000 m deci 0,1 u 0,00025 centi 0,01 u 0,0025 milli 0,001 u 0.025 micro 0,000001 u 25 nano 0,000000001 u 3 Multiply 3 Divide 3 3

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

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

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