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Density and Volume: Understanding Matter's Properties

Learn about density and volume, and how they relate to the mass and space occupied by objects. Discover how to calculate density and measure volume using the water displacement method.

murphyjennifer
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Density and Volume: Understanding Matter's Properties

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  1. 05/08/17 I.S AIM: • Do Now: Which car is ‘denser’? What does that mean something is dense?

  2. Do now: Turn & Talk to your partner. Compare 1kg of feathers and 1 kg of steels. 1. Which do you think would take up more space? Why? 2. Which do you think would have the greater Mass? Why? 1 kg of steels 1 kg of feathers

  3. Violume

  4. Mass, Volume, & Density

  5. Which do you think would have the greater volume? The greater mass?Why? 1 kg of steels 1 kg of feathers

  6. What is Mass? -The amount of matter in an object. -Unit of measurement = g (gram) -What tool do we use to find mass? Triple Beam Balance

  7. There are 3 states of matter: Solid Liquid Gas

  8. What is Volume? - Measurement of the amount of space an object takes up -Unit of measurement = ml (milliliter) or cm3 (cubic centimeter) -What tools can we use to find volume?

  9. Finding Volume of Cube -Volume of a cube = Length x Width x Height = L x W x h -Let’s practice! Cube: 2 cm L, 2 cm W, 2 cm h Did you say 8 cm3?

  10. 1kg of steel VS 1kg of feathers • https://www.youtube.com/watch?v=yuOzZ7dnPNU

  11. Density It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the amount of matter within a certain volume.

  12. Which one is more dense? Demonstration: People in a square How about this: Which square is more dense?

  13. Which one is more dense? Now which one is more dense?

  14. 05/08/17 I.S AIM: • Do Now: Which car is ‘denser’? What does that mean something is dense?

  15. To find the density 1- Find the mass of the object 1- Find the mass of the object 3- Divide Density = Mass g Volume c³ 2- Find the volume of the object ALWAYS REMEMBER UNITS!

  16. To find density: • Find the mass of the object • Find the volume of the object • Divide : Density = Mass ÷ Volume Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.

  17. To find density: • Find the mass of the object • Find the volume of the object • Divide : Density = Mass ÷ Volume Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density Set up your density problems like this: Given: Mass = 35 grams Unknown: Density (g/ cm3) Volume = 7 cm3 Formula: D = M / V Solution: D = 35g/7 cm3 D = 5 g/cm3

  18. Let’s try some density problems together Work on these problems with your neighbor 1 Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?

  19. 2. Frank also has an eraser. It has a mass of 3g, and a volume of 1cm3. What is its density?

  20. 3. Jack has a rock. The rock has a mass of 6g and a volume of 3mL. What is the density of the rock?

  21. 4. Jill has a gel pen. The gel pen has a mass of 8g and a volume of 2ml. What is the density of the rock?

  22. Finding Volume of an Irregular Shaped Object -Can’t use a ruler!!! -Find volume by water displacement method. -Volume of water with object – volume of water before object -Don’t forget to read the graduated cylinder from the bottom of the meniscus!!!

  23. What is the reading on this graduated cylinder? 56 ml

  24. How about this one? Be careful!!! 4.3 ml

  25. Last one! 23 ml

  26. Measuring Volume by Displacement Steps: Reading the initial water volume Submerge object into the water Read the final water volume Final vol – Initial vol Used for irregular shaped objects

  27. Do the math 1 . Original reading of volume • Final volume of water • This will equal the volume of the object • 22.5 mL - 17.4 mL =  5.1 mL •     Therefore, the volume of the object by displacement is 5.1 mL

  28. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  29. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  30. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  31. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  32. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  33. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  34. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  35. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  36. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  37. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  38. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  39. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  40. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  41. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  42. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  43. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  44. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  45. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

  46. Using Water Displacement to Calculate Volume • Measure the level of the water in a container. 30 ml • Insert an object in the water. We’ll use a metal ball. 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml

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