Mass Volume and Graphing

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Simple PowerPoint used for explaining how to measure matter including mass, volume, and graphing.

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Mass Volume and Graphing

  1. 1. Measuring Matter
  2. 2. What is matter? • Matter is everything around you!
  3. 3. All matter has . . . • Mass • And • Volume
  4. 4. Examples of Matter • Anything that has mass and volume • Pencil, book, car, water, air, etc. . . • That includes you!
  5. 5. What is mass? • Mass is the amount of matter in an object. • Elephant = a lot of matter = LARGE Mass • Paperclip = small amount of matter = SMALL mass
  6. 6. How do we measure mass? • We measure mass with a triple beam balance • Make sure it is balanced before you begin. • Move the riders until the the arm is at the zero. • Add all the numbers together. • Mass is measured in grams (g).
  7. 7. What is volume? • The amount of space taken up or occupied by an object.
  8. 8. How do you find the volume of a rectangular solid object? • Volume = length • width • height • V = l • w • h 2 cm 2 cm 4 cm Example: V = 2 cm • 2 cm • 4 cm V = 16 cm3
  9. 9. How do you find the volume of an irregular-shaped solid object? • Water Displacement: – Fill a graduated cylinder with a certain amount of water. – Drop the object into the graduated cylinder with the water. – Measure the change in volume of the water. • Measure how far the water rose when the object was placed in the graduated cylinder.
  10. 10. How do you find the volume of a liquid? – Use a graduated cylinder. – Measure from the bottom of the meniscus. – Measure in milliliters (mL).
  11. 11. How do you find the volume of a gas? • A gas will fill the volume of its container, so find the volume of the container and you have the volume of the gas
  12. 12. Reminder… • 1mL=1cm3 • Write this on your notes in the margins next to the volume section and put a box around it!
  13. 13. Graphing
  14. 14. Why do we graph data? • To show the relationship between the independent and dependent variable. • To compare data.
  15. 15. Rules for Graphing: 1. Always use a ruler or computer program 2. Have your graph take up half a page to a full page of paper 3. Title your graph descriptively – Title should relate to what is being shown in the graph
  16. 16. Rules for Graphing: 4. Label the x (along the bottom) and y axis (along the left side) – x-axis should be the independent variable (the variable we change during the experiment, ex: time or distance ) – y-axis should be the dependent variable (the variable we observe/measure in the experiment, ex: temperature or mass )
  17. 17. Rules for Graphing: 5. Number the x and y axis with consistent numbers (increasing by 5’s or 10’s, etc.) – Use the majority of each axis for your graph 5. Use different colors/patterns if you are showing multiple trials.
  18. 18. How do you know which graph to use? • Depends on: – The information (variables) you use – What you are trying to show
  19. 19. Line Graph vs. Bar Graph Line Graph: •Used to show changes that occur in related variables •Shows trends (changes) over time Bar Graph: •Use to compare data (such as measurements, amounts or changes) •Can show large changes over time Pie Chart: •Circle that shows how parts relate to the whole. •Shows proportions
  20. 20. Which type of graph would you use for: • Plant growth over time • Population of a city over 10 years • Students preference in food (pizza vs hamburgers vs hot dogs vs chicken nuggets) • Number of people in 4 different towns • The number of hours spent on Facebook by students each week Line Graph Line or Bar Pie Chart Bar Graph Line Graph

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