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Jumpstart

Page 14 . Objective 09/10/12 . SW become familiar with the metric system by recalling the factors and tools used for measurement through notes and pictures. A. Jumpstart. B. For EACH diagram, write: Name of the tool What it measures An example of a METRIC unit(s) Example: Clock

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Jumpstart

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  1. Page 14 Objective 09/10/12 SW become familiar with the metric system by recalling the factors and tools used for measurement through notes and pictures. A Jumpstart B • For EACH diagram, write: • Name of the tool • What it measures • An example of a METRIC unit(s) • Example: • Clock • Measures time • Seconds (sec), minutes (min), hours (hr) C D

  2. A B • Graduated Cylinder • Measures liquid volume • Liter (L) or milliliter (mL) • Triple-beam balance • Measures mass • Gram (g) or Kilogram (kg) C D • Thermometer • Measures temperature • Degrees Celsius (°C ) • Ruler/Meter Stick • Measures length • Meter (m), Centimeter (cm), Millimeter (mm), Kilometer (km) • Name of the tool, b. What it measures, c. METRIC unit

  3. POP QUIZ There will be a quiz first today. Take out a half sheet of paper and put your heading in the upper right hand corner.

  4. Scientific Method Quiz A student is conducting an experiment to determine how their average heart rate changes based on 30 minutes of a physical activity. Use the following data they collected to help you answer the following questions. • Which of the following would be an acceptable hypothesis for this experiment? • Yoga will have the lowest average heart rate. • If the activity is more strenuous, then the average heart rate will be higher, because the heart has to work harder to pump blood to the rest of the body. • All of the activities will yield the same average heart rate. • Jogging will produce a higher average heart rate than lifting weights because lifting weights is an anaerobic activity. • Which of the following would be a controlled variable in this student’s experiment? (Circle all that apply) • The number of trials. • The year the student graduates. • The physical activity the student participates in. • The length of time the student exercises.

  5. A student is conducting an experiment to determine how their average heart rate changes based on 30 minutes of a physical activity. • Identify the dependent variable in this experiment. • Exercising for 30 minutes • The type of activity • The average heart rate • The number of trials • What would the independent variable be in this experiment? • Exercising for 30 minutes • The type of activity • The average heart rate • The number of trials • Which of the following conclusions can you draw as a result of the experiment? • All exercises generate the same average heart rate after 30 minutes of activity. • Surfing is the most physically demanding activity because it produced the highest heart rate. • Yoga is easy because it has the lowest average heart rate. • If you exercised for 60 minutes, your average heart rate would be doubled.

  6. Intro to metric system Interactive notebook page 15

  7. Banned units: (English System/Customary System)DO NOT use these in this class! • Mass • Pounds • Ounces • Volume • Gallons • Pints • Quarts • Temperature • Fahrenheit • Length • Inch • Feet • Mile • Yard

  8. America's Aversion to the Metric System • Marge Simpson: “Now, I know you haven't liked some of my past suggestions, like switching to the metric system—” • Grandpa Simpson: “The metric system is the tool of the devil! My car gets forty rods* to the hogshead** and that's the way I likes it.” *a measure of length equal to 16½ ft or 5½ yds ** a large barrel which holds 63 gallons Is this good or bad gas mileage? Is it hard to tell? • 0.0019 miles/gallon OR 10.47 feet/gallon !!

  9. NASA's metric confusion caused Mars orbiter loss September 30, 1999 • (CNN) -- NASA lost a $125 million Mars orbiter because one engineering team used metric units while another used English units for a key spacecraft operation, according to a review finding released Thursday. • For that reason, information failed to transfer between the Mars Climate Orbiter spacecraft team at Lockheed Martin in Colorado and the mission navigation team in California. • "People sometimes make errors," said Edward Weiler, NASA's Associate Administrator for Space Science. "The problem here was not the error, it was the failure of NASA's systems engineering…to detect the error. That's why we lost the spacecraft.” • The spacecraft completed a nearly 10-month journey to Mars before it was lost on September 23. • The navigation mishap pushed the spacecraft dangerously close to the planet's atmosphere where it presumably burned and broke into pieces, killing the mission on a day when engineers had expected to celebrate the craft's entry into Mars' orbit.

  10. U.S. and the Metric System- Update January 8, 2007: If you think in pounds and miles instead of kilograms and kilometers, you're in the minority. Only the United States, Liberia, and Burma still primarily use English units -- the rest of the world is metric. And now the Moon will be metric too. NASA has decided to use metric units for all operations on the lunar surface when it returns to the Moon. The Vision for Space Exploration calls for returning astronauts to the Moon by 2020 and eventually setting up a manned lunar outpost.

  11. METRIC SYSTEM • Students all over the world already learn SI units in school (Systeme International- Internationally used) • SI must be mastered by doctors, scientists and international business/relations/trade Metric System: PROS and CONS- everyday life

  12. METRIC SYSTEM Metric System: PROS and CONS- Everyday Life • Costly to convert! • US products still use US measurement system • American cookbooks • Milk comes in quarts, pints or gallons, not liters (L) or milliliters (mL) • TV’s come as 20-inch screens, not 50.8-cm screens

  13. For the Metric System METRIC SYSTEM • It has a simple set of names • Meter, Liter, Gram • This gives you fewer units to memorize, not to mention conversion factors! • Simple conversion factors that are consistent across all categories • English System • How many inches in a foot? • How many feet in a mile? • The use of tens fits with our decimal—we will examine this in a moment

  14. Against the Metric System METRIC SYSTEM • Metric units are not always appropriate amounts for convenient use • Cannot properly learn to convert between units until multiplication skills are mastered (in 3rd or 4th grade)

  15. Working with the Metric System • Look at the meter stick in front of you. With your partner, determine which side is metric, and which side is English. Then, answer the following questions in the blank space at the top: • How many centimeters are in one meter? • 100 centimeters = 1 meter • How many millimeters are in one centimeter? • 10 millimeters = 1 centimeter • How many millimeters are in one meter? • 1000 millimeters = 1 meter • How did you figure this out, did you count them all?! • S.I. units are easy to work with—they are based on multiples of 10!

  16. Page 16 Objective 09/11/12 SWBAT apply their prior knowledge of the metric system by using the metric ladder through practice. Jumpstart What is the basic SI unit for VOLUME? What is the basic SI unit for MASS? What is the basic SI unit for LENGTH? Outro Name 2 reasons for using the Metric System instead of the English System.

  17. Jumpstart Answers • What is the basic SI unit for VOLUME? • Liter (L) • What is the basic SI unit for MASS? • Gram (g) • What is the basic SI unit for LENGTH? • Meter (m)

  18. The Metric Ladder Interactive Notebook Pg 17

  19. Metric Ladder & Metric Prefixes (Page 10) Meter (m) Liter (L) Gram (g)

  20. Practicing Metric Abbreviations Dekameter Milliliter Deciliter Hectoliter Meter Kilometer Hectogram Centimeter Kilogram Millimeter Dekagram Liter Milligram Decimeter Gram dam mL dL hL m km hg cm kg mm dag L mg dm g

  21. Metric Ladder Mnemonic (memory device) • Kittens • Hate • Dogs • BECAUSE • Dogs • Can’t • Meow • Kilo- • Hecto- • Deka- • BASIC UNIT • Deci- • Centi- • Milli- • King • Henry • Died • BY • Drinking • Chocolate • Milk • Kids • Have • Dropped • OVER • Dead • Converting • Metrics

  22. How to Use the Metric Ladder MetersLitersGrams Starting Point Ending Point __. __. __. 3 2 1 KILO HECTO DEKA DECI CENTI MILLI Practice (bottom of page): 4 km = ______m Determine startingand endingpoint. Count # of “bounces” from starting to endingpoint. Which direction? Move the (invisible) decimal the same number of bounces in the same direction. 3 bounces to the right 4. = 4000 m

  23. How many centiliters are in 5 liters? • Rewrite this question as an equation. • 5 L = _____ cL • Determine startingand endingpoint. • Starting – L; Ending – cL • Count # of “bounces” from starting to ending point. Which direction? • 2 bounces to the right • Move the (invisible) decimal the same number of bounces in the same direction. • 500.0 centiliters • 5 L = 500 cL

  24. How many kilograms are in 7 decigrams? • Rewrite this question as an equation. • 7 dg = _____ kg • Determine startingand endingpoint. • Starting – dg; Ending – kg • Count # of “bounces” from starting to ending point. Which direction? • 4 bounces to the left • Move the (invisible) decimal the same number of bounces in the same direction. • 0.0007 kilograms • 7 dg = 0.0007 kg

  25. Practice Problems Determine startingand endingpoint. Count # of “bounces” from starting to ending point. Which direction? Move the (invisible) decimal the same number of jumps in the same direction. • 1 kilometer = _____ meters • 1 kilometer = 1000 meters • 1 gram = _____ dekagrams • 1 gram = 0.1 dekagrams • 1 dekagram = _____ grams • 1 dekagram = 10 grams • 1 decigram = _____ grams • 1 decigram = 0.1 grams

  26. 5.6 kg = ____ g • 5.6 kg = 5,600 g • 2000 L = _____ mL • 2000 L = 2,000,000 mL • 60.2 dam = _____ dm • 60.2 dam = 6,020 dm • 7,100 m = _____ km • 7100 m = 7.1 km • Determine startingand endingpoint. • Count # of “bounces” from starting to ending point. Which direction? • Move the (invisible) decimal the same number of jumps in the same direction.

  27. Homework: Page 11 Directions and Tips: • Determine startingand endingpoint. • Count # of “bounces” from starting to ending point. Which direction? • Move the (invisible) decimal the same number of bounces in the same direction. • *Use a 0 as a placeholder in front of the decimal* • *Make sure your decimal points are big and healthy—and noticeable to other people* • *Show your “bounces” with arrows* • 15 mg = _________g • 3 Left • 15 mg = 0.015 g

  28. Page 16 Objective 09/11/12 SWBAT apply their prior knowledge of the metric system by using the metric ladder through practice. Jumpstart What is the basic SI unit for VOLUME? What is the basic SI unit for MASS? What is the basic SI unit for LENGTH? Outro Name 2 reasons for using the Metric System instead of the English System.

  29. Outro Answers • Name 2 reasons for using the Metric System instead of the English System. • It's a standard around the world! • Students all over the world already learn SI units in school • SI must be mastered by doctors, scientists and international business/relations/trade • It has a simple set of names (Meter, Liter, Gram) • Fewer units to memorize • Simple conversion factors

  30. Page 18 Objective 09/12/12 SWBAT apply their prior knowledge of the metric ladder by practicing metric conversions. Jumpstart Create a Memory (Mneumonic) Device to remember the metric ladder. Outro Solve the following conversions: 7.5 dm = _____ cm 0.3 daL = _____ mL 10.1 m = _____ hm 150 cg = _____ g 5 hL = _____ kL

  31. Metric Conversions INB Page 19

  32. Metric Conversions • Rules of Converting • Determine startingand endingpoint. • Count # of “bounces” from starting to ending point. Which direction? • Move the (invisible) decimal the same number of jumps in the same direction.

  33. Page 12: Directions/Reminders Homework: Page 12 • *Use a 0 as a placeholder in front of the decimal* • *Make sure your decimal points are big and healthy—and noticeable to other people*

  34. Page 18 Objective 09/12/12 SWBAT apply their prior knowledge of the metric ladder by practicing metric conversions. Jumpstart Create a Memory (Mneumonic) Device to remember the metric ladder. Outro Solve the following conversions: 7.5 dm = _____ cm 0.3 daL = _____ mL 10.1 m = _____ hm 150 cg = _____ g 5 hL = _____ kL

  35. Page 20 Objective 09/13/12 SWBAT practice measuring distance by using length through notes and participating in a length lab. Jumpstart What lengths are marked on the following ruler—in cm and mm? Measure the distance between the red arrow and each arrow marked by letters a-e. Prove: How do you convert from cm to mm?

  36. Jumpstart Answers 0.5 cm 5 mm 3.3 cm 33 mm 5.5 cm 55 mm 7.0 cm 70 mm 8.3 cm 83 mm

  37. MetersThe best thing since sliced bread INB Page 21

  38. METERS • Meters metersmetersmetersmetersmetersmeters • Centimeters, Millimeters, Kilometers • The unit of length measure used in the metric system • Common units used within the metric system to measure length

  39. METERS • What are metric conversions based on? • How can you convert a number in the metric system? • Powers of 10 powers powers • Move the decimal place to the right or the left

  40. METERS • Examples: • 1000 meters (m) = 1 kilometer (km) • 100 centimeters (cm) = 1 m • 1000 millimeters (mm)= 1 m = 100 cm

  41. Measuring: Length • Give an example of a time when measuring (time, length, mass, etc.) made something (like a competition) more exciting. • Michael Phelps Olympic swimming • What does SI stand for? • Système International d’UnitésOR • International System of Units • What is the basic unit for length? • Meter (m) • Choosing appropriate units: What might you be measuring on your body that you would want to use Millimeters? Centimeters? Meters? Kilometers? • Millimeters: Width of your nail, length of eyelashes • Centimeters: Length of your finger • Meters: Height, small intestines (~7m) • Kilometers: Veins (~97,000 km) • Could wrap around the world twice if stretched out! 7th gold medal: Men’s 100-meter butterfly. Beat Milorad Čavić by 1/100 of a second. Protest required analyzing frames shot 1/10,000th of a second apart to confirm Phelps’s victory.

  42. Page 1: Measuring Length Lab • Measure all of the items in Data Table 1 in cm. • Convert to m and mm. • Hints and Tips: • Convert the units into cm, m and mm • Length = long edge; Width = Short edge • In front: penny, large paperclip (all taped) • “Lab table” is 2 person table • Answer Conclusion Questions! • Complete top of page 2!

  43. Page 22 Objective 09/14/12 SWBAT practice measuring distance by using volume through notes and participating in a volume lab. Dentists have recommended that a toothbrush be kept at least 1,834 mm away from a toilet to avoid germs hitting the toothbrush resulting from the flush. 1,834 mm = ________ dm The human heart can pump blood so hard that it could squirt blood 9144 mm. 9144 mm = _______ dam The average lead pencil, if sharpened with minimal loss of graphite, will draw a line 56.35 km long or write approximately 50,000 English words. That’s 35 miles! Wow! 56.35 km = _______ hm Jumpstart Complete the following metric length conversions. Try to use the mnemonic to remember the ladder, not your notes…it will need to be memorized for the test.

  44. Jumpstart Answer • Dentists have recommended that a toothbrush be kept at least 1,834 mm away from a toilet to avoid germs hitting the toothbrush resulting from the flush. 1,834 mm = ________ dm • The human heart can pump blood so hard that it could squirt blood 9144 mm. 9144 mm = _______ dam • The average lead pencil, if sharpened with minimal loss of graphite, will draw a line 56.35 km long or write approximately 50,000 English words. That’s 35 miles! Wow! 56.35 km = _______ hm • 1,834 mm = ________ dm • 2  • 18.34 dm • 9144 mm = _______ dam • 4  • 0.9144 dam • 56.35 km = _______ hm • 1  • 563.5 hm

  45. Volumecrank it up! INB page 23

  46. Volume If something has a “large volume”—what are you saying about it? What is the basic unit for liquid volume? • It is loud  • It takes up a lot of space. • Volume- the amount of space an object takes up • Liter (L) • Cubic centimeters (cm3 or cc)

  47. Volume What measurement tools could you use to precisely measure solid and/or liquid volume? • Metric ruler, meter stick • Graduated cylinder, beaker, flask, pipet

  48. 1 fl oz = 29.573 mL 1 12-oz can of soda would equal approximately 355 mL 1 quart = 0.946 liters 3.79 liters = 1 gallon It would take approximately 3 ¾ 1-liter bottles to equal a gallon. 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

  49. How you would find the volume of the boxes below? What is the volume? Include proper units. • Volume of rectangular solids = length  width  height • 5 m  3 m  3 m = 45 m3 • 5 m  3 m  2 m = 30 m3

  50. Different Types of Graduated CylindersSize of the graduated cylinder and its markings • Look at the markings on an empty large graduated cylinder. These lines indicate the amount of the liquid in milliliters (ml). • 100:1 mL • 100 milliliter (mL) • Graduations every 1 mL • 500:5 mL • 500 milliliter (mL) • Graduations every 5 mL • 10:0.2 mL • 10 milliliter (mL) • Graduations every 0.2 mL

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