1. The Metric System Why scientists love it so.

2. Recap: Were the Oreos Double Stuffed? Example Data from Oreo Lab 1.Which of the experiments above demonstrates that the Double Stuffed Oreos are truly double stuffed? Which does not? 2.How can we come up with a reliable way to analyze the data to show us “Yes” vs “No”? ExperimentMass of Regular Oreo Cream Mass of Double Stuff Oreo Cream A3.1 g6.3 g B2.8 g6.7 g C3.2 g6.1 g D3.0 g6.0 g

3. The English system is very confusing because it has so many different values

4. Scientists give the English system the thumbs down Scientists needed an exact and uniform system of weights and measurements

5. Metric Base Units Basic Units in the Metric System Physical QuantityBasic UnitSymbol Lengthmeterm Massgramg VolumeliterL

6. Metric Chart PrefixSymbolFactor NumberFactor Word GigaG1,000,000,000Billion MegaM1,000,000Million Kilo-k1000Thousand Unitm, l, or g1One Centi-c.01Hundredth Milli-m.001Thousandth Microμ.000001Millionth

7. Meters Meters measure length or distance One millimeter is about the thickness of a dime. 1000 mm = 1 m

8. Meters One centimeter is about the width of a large paper clip 100 cm = 1 m or your fingernail.

9. Meters A meter is about the width of a doorway

10. Meters A kilometer is about six city blocks or 10 football fields. 1000 m = 1 km 1.6 kilometers is about 1 mile

11. Gram Grams are used to measure mass or the weight of an object.

12. Grams A milligram weighs about as much as a grain of salt. 1000 mg = 1 g

13. Grams 1 gram weighs about as much as a small paper clip. 1 kilogram weighs about as much as 6 apples or 2 pounds. 1000 g = 1 kg

14. Liters Liters measure liquids or capacity.

15. Liter 1 milliliter is about the amount of one drop 1000 mL = 1 L

16. Liter 1 liter is half of a 2 liter bottle of Coke or other soda