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Measuring Volume: Methods and Units

Learn how to measure volume for liquids and regular solids using different instruments and units. Includes practice exercises and review of concepts.

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Measuring Volume: Methods and Units

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  1. TOPIC: Measurement Aim: How do we measure volume? Do Now: 1. Take out Scientific Method # 4 ISA. 2. Copy the topic and aim into your class notes. 3. Identify the SI unit for length. HW: Finish Scientific Method Worksheet from yesterday.

  2. Scientific Method Practice #4 ISA Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same tasks (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made.

  3. 0 1 2 3 4 cm What is the length of the object in millimeters? Centimeters to the nearest tenth? 19mm 1.9cm

  4. 0 1 2 3 4 cm What is the length of the object in millimeters? Centimeters to the nearest tenth? 29mm 2.9cm

  5. 0 1 2 3 4 cm What is the length of the object in millimeters? Centimeters to the nearest tenth? 19mm 1.9cm

  6. 0 10 20 60 65 70 75 80 85 90 CORRECT!!! No consistent interval.

  7. 1. Measure the length of the pencil in cm to the nearest tenth. 2. Measure the length of the pencil in mm. 7.5cm 75mm

  8. The amount of SPACEan object takes up Volume

  9. Did you know… The basking shark and the white whale are the world’s largest sharks with the largest volumes. They are also the least dangerous sharks. Basking Shark White Whale

  10. The amount of SPACEan object takes up SI UNITS = Liquid: mL or L Solid: cm3 1 mL = 1 cm3 Volume

  11. How is volume measured?

  12. 1. RegularSolid: V = L x W x H How is volume measured?

  13. Ex: L =2 cm, W=1 cm, H=1 cm V =2cm x 1cm x 1cm V = 2 cm3

  14. Example: V = ?

  15. V = L x W x H 2cm x 3cm x 5cm V = 30 cm3

  16. 2. Liquid: graduated cylinder (mL)

  17. TOPIC: Measurement Aim: How do we measure volume? Do Now: 1. Take out yesterday's HW ditto. 2. Take out your volume notes. HW: Measuring Volume Worksheet #’s 1 – 3 (Back of length ditto)

  18. 13.0cm 14.0cm 10.3cm 12.0cm 14.4cm 11.3cm 9.7cm 12.5cm 13.3cm

  19. Number of bacteria in a sample Correct or Incorrect? Support your answer. INCORRECT!!! 1. No consistent interval on the Y-axis. 2. The # of boxes skipped between each # on the X-axis is not consistent.

  20. Independent variable? Day Number of bacteria in a sample Dependent variable? Number of bacteria in a sample State the relationship between the days and the number of bacteria in a sample. As the days increase, the number of bacteria in the sample increases.

  21. Let’s review… • Describe volume. How do we measure the volume of a regular solid? • Identify the units that are used to measure the volume of a regular solid. • How do we measure the volume of a liquid? • Identify the units that are used to measure the volume of a liquid.

  22. V = 8.6mL

  23. V = 20.0mL

  24. V =73 mL

  25. V = 18 mL

  26. 5.5 mL 26 mL

  27. 23.5 mL

  28. http://www.youtube.com/watch?v=3ZynLbQrs24

  29. 3.Irregular solid: Displacement V with object - V w/o object

  30. V = 9 – 7= 2 V = 2 mL V1 = 7 mL V2= 9 mL

  31. 260mL – 200mL = 60mL V1 = 200 mL V2 = 260 mL

  32. Let’s summarize… Describe what is measured when you are measuring volume. Identify the instrument used to measure volume of a liquid. Identify the instrument used to measure volume a regular solid. What are the units used when measuring the volume of a liquid? Of a solid?

  33. Let’s summarize… Explain how the volume of a certain amount of liquid is measured. Explain how the volume of a regular solid is determined. Explain how displacement is used to measure the volume of an irregular solid

  34. V =53 mL

  35. 1. Identify the name of this method used to find the volume of a ball. DISPLACEMENT 2. Determine the volume of the ball. 25mL V = 40mL V = 65mL 65mL – 40mL = 25mL

  36. Determine the volume. L x W x H 10cm x 5cm x 3cm = 150cm3

  37. Correct or incorrect? INCORRECT!!! On the Y-axis, the # of boxes skipped between each number is inconsistent.

  38. Independent variable? Day Dependent variable? Concentration of estrogen State the relationship between the days and the concentration of estrogen in a sample. As the days increase, the concentration of estrogen in the sample increases, decreases and increases .

  39. Correct or Incorrect? Support your answer. CORRECT!!!

  40. Identify the volume of the liquid. 76mL

  41. Identify the volume of the liquid. 21.5mL

  42. Identify the length of the comb in cm to the nearest tenth. 10.0cm

  43. Identify the length of the nail in cm to the nearest tenth. 5.1cm

  44. Identify the length of the eraser in cm to the nearest tenth. 3.9cm

  45. Identify the length of the crayon in cm to the nearest tenth. 7.1cm

  46. Identify the length of the bar in cm to the nearest tenth. 2.3cm

  47. http://www.learnalberta.ca/content/mesg/html/math6web/index.html?page=lessons&lesson=m6lessonshell15.swfhttp://www.learnalberta.ca/content/mesg/html/math6web/index.html?page=lessons&lesson=m6lessonshell15.swf

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