1. Dimensional Analysis Dimensional Analysis: Uses equalities to convert a value from one unit to another. Unit equalities: equations that show how different units are related 1000 m = 1 km 1 in = 2.54 cm 1 mi = 5280 ft Conversion factors: equations that are always equal to one. 1000 m 1 in 1 mi 1 km 2.54 cm 5280 ft *whatever unit you want to get rid of should be on the bottom* *conversion factors are “defined quantities”

2. 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, REMEMBER TO SHOW WORK! 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 Metric Conversion Challenge http://sciencespot.net

3. How many minutes are there in one week?

4. How many seconds are there in one 40 hour work week?

5. An experiment requires that each student use an 8.5cm length of magnesium ribbon. How many students can do the experiment if there is a 570cm length of magnesium ribbon available?

6. You're throwing a pizza party for 15 and figure each person might eat 4 slices. How much is the pizza going to cost you? You call up the pizza place and learn that each pizza will cost you $14.78 and will be cut into 12 slices. You tell them you'll call back. Do you have enough money? Here's how you figure it out, step by step.

7. What is the difference between mass and weight? Mass is the amount of space that something takes up, weight is the mass including the gravitational pull.