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Measuring Matter-A Common Language

Measuring Matter-A Common Language. A Standard Measurement System. The International System of Units (SI). The Metric System. When and why was the metric system invented?. The metric system was invented by a group of French scientists in 1790

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Measuring Matter-A Common Language

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  1. Measuring Matter-A Common Language

  2. A Standard Measurement System The International System of Units (SI)

  3. The Metric System

  4. When and why was the metric system invented? • The metric system was invented by a group of French scientists in 1790 • The metric system was invented because countries were using many different systems of measurement causing confusion and lack of consistency

  5. WHY DO WE USE THE METRIC SYSTEM? Almost all other countries are using the metric system Other countries’ companies are refusing to buy products from the U.S. if not labeled in metric units * Scientists need a universal way to communicate data (SI Units)

  6. WHAT DOES THE METRIC SYSTEM MEASURE? * The gram measures mass or how much something weighs * The liter measures volume which is used when measuring liquids * The meter measures the length of an object or the distance from place to place

  7. Scientists all over the world use the International System of Units to measure: • Length • Volume • Mass • Density • Temperature • Time

  8. Metric System A system of measurement used by the majority of countries on Earth based on the number 10

  9. Key Concept: Why do scientists use a standard measurement system? • Using SI as the standard system of measurement allows scientists to compare data and communicate with each other about their results • Using SI measurement also allows experiments to be repeated and most importantly achieve a desired result

  10. DRAW THE FOLLOWING CHART ON THE BLANK SHEET OF WHITE PAPER IN THE REFERENCE PART OF YOUR FOLDER

  11. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Kilo (k) 1000 units Hecto (h) 100 units Deka (da) 10 units Basic Unit Gram Meter Liter To convert to a smaller unit, move decimal point to the right or multiply. To convert to a larger unit, move decimal point to the left or divide Deci (d) 0.1 units Centi (c) 0.01 units Milli (m) 0.001 units

  12. Length

  13. Figure 1: Calculating - How much larger is a kilo- than a deka-? • 100 times

  14. What is length? • Length is the distance from one point to another

  15. What tool do we use to measure length or distance?

  16. A METER STICK is used to measure lengths and distances

  17. METER STICK

  18. The basic unit of length in the SI system is the … METER

  19. APPROXIMATE CONVERSIONS BETWEEN METRIC & US LENGTH UNITS • A meter is about the same length as a yard • A meter is about three feet long • A decimeter is about four inches long • An inch is about 25 millimeters • A foot contains about 30 centimeters • A foot contains about 3 decimeters

  20. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Kilo (k) 1000 units To convert to a smaller unit, move decimal point to the right or multiply. Hecto (h) 100 units Deka (da) 10 units Basic Unit Gram (g) Meter (m) Liter (l) Deci (d) 0.1 units Centi (c) 0.01 units To convert to a larger unit, move decimal point to the left or divide Milli (m) 0.001 units

  21. THERE ARE… • 1000 millimeters (mm) in a meter (m) • 100 centimeters (cm)in a meter (m) • 10 decimeters (d) in a meter (m) • 1 meter (m) in a meter (m) • 10 meters (m) equals 1 dekameters (da) • 100 meters (m) equals 1 hectometer (h) • 1000 meters (m) equals 1 kilometer (k)

  22. MEASURING LENGTHS LONGER THAN A METER EXAMPLE: The distance from point A to point B is 5.8m. What is that distance in KILOMETERS?

  23. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Because KILOMETERS is larger than a meter, you move the decimal point 3 places to the left. Kilo 1000 units Hecto 100 units Deka 10 units Basic Unit Gram Meter Liter 1 Deci 0.1 units Centi 0.01 units 5.8m turns to .58da Milli 0.001 units

  24. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Because KILOMETERS is larger than a meter, you move the decimal point 3 places to the left. Kilo 1000 units Hecto 100 units Deka 10 units Basic Unit Gram Meter Liter 2 1 Deci 0.1 units Centi 0.01 units 5.8m turns to .058h Milli 0.001 units

  25. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Because KILOMETERS is larger than a meter, you move the decimal point 3 places to the left. Kilo 1000 units Hecto 100 units Deka 10 units 3 Basic Unit Gram Meter Liter 2 1 Deci 0.1 units Centi 0.01 units 5.8m turns to .0058k Milli 0.001 units

  26. MEASURING LENGTHS LONGER THAN A METER EXAMPLE: The distance from point A to point B is 50.35k (KILOMETERS). What is that distance in METERS?

  27. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Because the METER is smaller than a KILOMETER, you move the decimal point 3 places to the right. Kilo 1000 units Hecto 100 units Deka 10 units Basic Unit Gram Meter Liter 1 Deci 0.1 units Centi 0.01 units 50.35k turns to 503.5h Milli 0.001 units

  28. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Because the METER is smaller than a KILOMETER, you move the decimal point 3 places to the right. Kilo 1000 units Hecto 100 units Deka 10 units Basic Unit Gram Meter Liter 1 2 Deci 0.1 units Centi 0.01 units 50.35k turns to 5035.da Milli 0.001 units

  29. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Because the METER is smaller than a KILOMETER, you move the decimal point 3 places to the right. Kilo 1000 units Hecto 100 units Deka 10 units Basic Unit Gram Meter Liter 1 2 Deci 0.1 units Centi 0.01 units 3 50.35k turns to 50350.m Milli 0.001 units

  30. MEASURING LENGTHS SMALLER THAN A METER

  31. The two units that measure the length of smaller objects are, … • Decimeter • Centimeter • Millimeter

  32. The longer lines on the metric ruler are called… • centimeters

  33. The shorter lines on the metric ruler are called… • millimeters

  34. One centimeter is divided into how many millimeters? • 10 millimeters (mm)

  35. Looking at the turtle below. Estimate it’s length from the rear of its shell to the tip of its nose. Record its length in both centimeters and millimeters. • 10.5 cm • 105 mm

  36. What is the length of the pencil below in centimeters AND millimeters? 58 mm 5.8 cm

  37. RESULTS OF DESK MEASURES LAB DESK A: 5.79 m, 579.0 cm, 5790 mm LAB DESK B: 7.12 m, 712.0 cm, 7120 mm LAB DESK C: 8.175 m, 817.5 cm, 8175 mm LAB DESK HEIGHT: .93 m, 93 cm, 930 mm

  38. VOLUME

  39. Volume • The amount of space that matter occupies • All matter has volume • Measurement of 3 dimensional objects

  40. The basic unit of measure for VOLUME is the LITER

  41. COMMON UNITS OF VOLUME • Liter (L) • Milliliter (mL) • Cubic Centimeter (cm³)

  42. THE METRIC CONVERSION CHART (STAIRCASE METHOD) Kilo (k) 1000 units To convert to a smaller unit, move decimal point to the right or multiply. Hecto (h) 100 units Deka (da) 10 units Basic Unit Gram (g) Meter (m) Liter (l) Deci (d) 0.1 units Centi (c) 0.01 units To convert to a larger unit, move decimal point to the left or divide Milli (m) 0.001 units

  43. How many milliliters are in 13 Liters?

  44. THE METRIC CONVERSION CHART (STAIRCASE METHOD) 13.0 L Kilo (k) 1000 units 13.0 L Hecto (h) 100 units Deka (da) 10 units Basic Unit Gram (g) Meter (m) Liter (l) 130. 0 d 1 2 Deci (d) 0.1 units 13000.0 mL Centi (c) 0.01 units 3 1300.0 cL Milli (m) 0.001 units

  45. TOOLS TO MEASURE VOLUME • Metric ruler • Regular shaped objects • Graduated Cylinder • Irregular shaped objects • liquids

  46. EQUATING UNITS OF VOLUME • 1 L = 1,000 mL • 1 mL = 0.001 L • 1 mL = 1 cm³

  47. CALCULATING VOLUME • Using a metric ruler Volume = length X width X height of an object

  48. YOUR PERSPECTIVE Height (h) Width (w) Length (l)

  49. METRIC SYSTEM • Metric System Notes – Length • Metric man • Metric Woman • Metric Spy • Metric Shuttle • 2 blank sheets of paper a) Label Measurements in Meters (1) • Label Graph in Meters (2) • VOLUME ACTIVITY • 10 sheets of notebook paper

  50. VOLUME ACTIVITY INSTRUCTIONS • Number the paper 1 – 20 • Measure each piece of wood for its VOLUME in centimeters AND millimeters

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