2. Write whether each measurement is Metric, English, Both, or Fake 1.meter 2.pint 3.ton 4.Newton 5.Einstein 6.second 7.inch 8.watt 9.pound 10.Fahrenheit 11.Kelvin 12.miles/hour 13.kilometers/hour 14.liter 15.quart 16.hertz

3. The Metric System Take out a sheet of paper and pen or pencil. Title your paper “Metric System Notes” Copy only the portion of the powerpoint that is written in red.

4. What is the Metric System? The metric system is a system of measurement which was developed over many years, and traces its origin to a 1585 book entitled "The Tenth", by Simon Stevin, who suggested that a decimal system be used for weights and measures.

5. The Metric System Metric System is a common language of measurement in science used all over the world.

6. The Metric System The US Congress amended the Metric Conversion Act of 1975 and designated the metric system as the preferred system of weights and measures for United States trade and commerce.

7. The Metric System Today, some business and technology companies in the USA use the metric system, and many products specify both. But most people have decided that the inconvenience of switching outweighs the benefits.

8. The Metric System Map of Nations that don't use The Metric System All countries colored in red choose not to use the metric system as their system of weights and measurements. Myanmar (Burma) Liberia The United States

9. Comparing Units English Standard vs. Metric system T. Trimpe 2008 http://sciencespot.net/

10. English vs. Metric Units Left Image: http://webapps.lsa.umich.edu/physics/demolab/controls/imagedemosm.aspx?picid=1167 Right Image: http://share.lancealan.com/N800%20ruler.jpg Which is longer? A. 1 mile or 1 kilometer B. 1 yard or 1 meter C. 1 inch or 1 centimeter 1.6 kilometers 1 mile 1 yard = 0.9444 meters 1 inch = 2.54 centimeters

11. English vs. Metric Units Which is larger? 1. 1 Pound or 100 Grams 2. 1 Kilogram or 1 Pound 3. 1 Ounce or 1000 Milligrams 1 pound = 453.6 grams 100 kilogram = 220 pounds 1 ounce of gold = 28,349.5 milligrams

12. English vs. Metric Units Which is larger? A. 1 liter or 1 gallon B. 1 liter or 1 quart C. 1 milliliter or 1 fluid ounce 1 gallon = 3.79 liters It would take approximately 3 ¾ 1-liter bottles to equal a gallon. 1 fl oz = 29.573 ml 1 12-oz can of soda would equal approximately 355 ml. 1 quart = 0.946 liters

13. The Metric System The Metric System is … - based on 10 - based on only three units of measure: the meter, liter, and gram

14. The Metric System Meter (m) – measures distance (instead of inch, foot, yard, or mile) Liter (L) – measures volume of liquids (instead of ounce, cup, pint, quart, & gallon) Volume measures how much space something takes up Gram (g)- measures mass/weight (instead of ounces, pounds, and tons) Mass measures how much matter is in an object.

15. The Metric System Prefixes are used to convert to smaller or larger units. Prefixes are the same for liters, grams, and meters. milli- 1/1000 or.001 centi- 1/100 or.01 kilo- 1,000 1 meter = 100 centimeters 1 meter = 1000 millimeters 1 kilometer= 1000 meters

16. Metric Conversions Ladder Method T. Trimpe 2008 http://sciencespot.net/

17. KILO 1000 Units HECTO 100 Units DEKA 10 Units DECI 0.1 Unit CENTI 0.01 Unit MILLI 0.001 Unit Meters Liters Grams Ladder Method How do you use the “ladder” method? 1 st – Determine your starting and ending 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 km = _________ m 1 2 3 How many jumps does it take? Starting Point Ending Point 4. 1 __. 2 3 = 4000 m

18. Try these conversions using the ladder method. 1000 mg = _______ g 1 L = _______ mL160 cm = _______ mm 14 km = _______ m109 g = _______ kg 250 m = _______ km Conversion Practice Compare using, or =. 56 cm 6 m 7 g 698 mg

19. Metric Tools!!! T. Trimpe 2008 http://sciencespot.net/

20. Measuring Length– We use a meter stick Ruler: http://www.k12math.com/math-concepts/measurement/ruler-cm.jpg How many millimeters are in 1 centimeter? What is the length of the line in centimeters? _______cm What is the length of the line in millimeters? _______mm What is the length of the line to the nearest centimeter? ________cm HINT: Round to the nearest centimeter – no decimals. 1 centimeter = 10 millimeters

21. Measuring Mass- We use a digital scale or balance Find the mass by weighing the object on the digital scale. Or, find the mass by using the balance.

22. Using a balance Place the object in one tray. Add the heaviest weight in the other. If it tips, add the next heaviest weight. Continue adding weights until the scale balances. Add all the weights up. The total is the weight of the object.

23. Measuring Volume- units are mL Top Image: http://www.tea.state.tx.us/student.assessment/resources/online/2006/grade8/science/images/20graphicaa.gif Bottom Image: http://morrisonlabs.com/meniscus.htm We use graduated cylinders to find the volume of liquids and other objects. Measure from the bottom of the meniscus (the curve). When using a real cylinder, make sure you are eye-level with the meniscus What is the volume of water in the cylinder? _____mL What causes the meniscus? A concave meniscus occurs when the molecules of the liquid attract those of the container. The glass attracts the water on the sides.

24. Measuring Liquid Volume Images created at http://www.standards.dfes.gov.uk/primaryframework/downloads/SWF/measuring_cylinder.swf What is the volume of water in each cylinder? Pay attention to the scales for each cylinder.

25. Measuring Solid Volume- Units are cm 3 Click here for an online activity about volumeClick here for an online activity about volume. Choose Lessons  Volume & Displacement 10 cm 9 cm 8 cm We measure the volume of regular object using the formula length x width x height using a ruler. _____ X _____ X _____ = _____ http://resources.edb.gov.hk/~s1sci/R_S1Science/sp/en/sy llabus/unit14/new/testingmain1.htm We measure the volume of irregular object using water displacement, using a graduated cylinder. Amount of H 2 O with object = ______ About of H 2 O without object = ______ Difference = Volume = ______

26. Interesting fact about the Metric system 1 mL of water weighs 1 gram.