CST Review
Density
CST Review
Density
Page 74
CST Review Questions
How is density calculated?
IV. Density can be calculated using the
following formula:
Density = Mass
Volume
Density = g
mL
Mass
Volume
What is speed?
The density equation can be rewritten
to solve different types of density
problems.
Density =
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
CST Review Questions
CST Review Questions
Mass
Volume
What is speed?
The density equation can be rewritten
to solve different types of density
problems.
Density =
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
5
CST Review Questions
5
CST Review Questions
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
5
CST Review Questions
Mass = Density X Volume
5
CST Review Questions
Mass = Density X Volume
Brick MassA = ?
Brick MassB = ?
Air MassC = ?
Air MassD = ?
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = ?
Air MassC = ?
Air MassD = ?
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = ?
A...
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X...
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X...
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X...
5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X...
CST Review Questions
31
Why is density important?
V. Density determines what things will
sink and float in a given liquid.
CST Review Questions
31
CST Review Questions
31
19
CST Review Questions
Why is density important?
A. If an object has LESS density
than the liquid it will FLOAT.
The ball has LESS
density than w...
Why is density important?
B. If an object has MORE density
than the liquid it will SINK.
The ball has MORE
density than wa...
CST Review Questions
19
CST Review Questions
Less
19
CST Review Questions
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Less
19
CST Review Questions
Less
Less
Less
19
CST Review Questions
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Less
Less
More
19
CST Review Questions
Less
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Less
More
19
18
CST Review Questions
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
Mass
Density Formula
You can rewrite the Density Formula
Density Volume
CST Review Questions
18
Density = Mass
Volume
1. Density = 89g = 8.9 g/mL
10mL
CST Review Questions
18
1. Density = 89g = 8.9 g/mL
10mL
2. Density = 26g = 2.6 g/mL
10mL
3. Density = 24g = 0.24 g/mL
100...
CST Review Questions
18
1. Density = 89g = 8.9 g/mL
10mL
2. Density = 26g = 2.6 g/mL
10mL
3. Density = 24g = 0.24 g/mL
100...
CST Review Questions
18
Density
Review
Think-Group-Share
An object has a mass of
50g and a volume of 5 mL.
What is its density?
Think-Group-Share
An object has a mass of
50g and a volume of 5 mL.
What is its density?
 10 g/mL
Density = Mass/Volume =...
Think-Group-Share
An object will sink in water
because its density is ____
the density of the water.
 A. higher than
 B....
Think-Group-Share
An object will sink in water
because its density is ____
the density of the water.
 A. higher than
 B....
Why is density important?
C. If an object has MORE density
than the liquid it will SINK.
The ball has MORE
density than wa...
Think-Group-Share
An object will float in water
because its density is ____
the density of the water.
 A. higher than
 B...
Think-Group-Share
An object will float in water
because its density is ____
the density of the water.
 A. higher than
 B...
What makes things float and sink?
A. If an object has LESS density
than the liquid it will FLOAT.
The ball has LESS
densit...
Think-Group-Share
What is density?
 A. the amount of matter in an
object
 B. the mass per unit volume
 C. the amount of...
Think-Group-Share
What is density?
 the amount of matter in an
object
 B. the mass per unit volume
 the amount of space...
What is density?
III. Density is an object’s mass per
unit volume.
feathers rocks
Think-Group-Share
A boy pours 10 mL of water into
a graduated cylinder and drops
a marble into it. The water rises
to 20mL...
Think-Group-Share
A boy pours 10 mL of water into
a graduated cylinder and drops
a marble into it. The water rises
to 20mL...
Measuring the Volume of an Irregular Solid
Volume of object + water _____
-Volume of water______ - _____
Volume of object ...
Think-Group-Share
What is the volume of a
rectangular box that has a
length = 6 cm, width= 2 cm,
height = 3 cm?
Think-Group-Share
What is the volume of a
rectangular box that has a
length = 6 cm, width= 2 cm,
height = 3 cm?
 36 cm3
V...
Volumes are calculated using a
formula.
Volume (box) = length X width X height
How is volume measured?
Volume (ball) = 4/3...
Think-Group-Share
A bottle holds 100 mL. It has a
density of 3 g/mL. What is its
mass?
Think-Group-Share
A bottle holds 100 mL. It has a
density of 3 g/mL. What is its
mass?
 300 g
mass = volume x density
= 1...
Think-Group-Share
A box has a mass of 60g and a
density of 10 g/mL What is its
volume?
Think-Group-Share
A box has a mass of 60g and a
density of 10 g/mL What is its
volume?
 6 mL
volume = mass/density
= 60g/...
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Wi...
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Wi...
Class Work
Volume and Density Practice Problems
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81 g/mL. A
bal...
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Wi...
Think-Group-Share
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81
g/mL. A ball has a density of
0.9g/mL. Wi...
Class Work
Volume and Density Practice Problems
Water has a density of 1.0 g/mL.
Alcohol has a density of 0.81 g/mL. A
bal...
Think-Group-Share
A metal box has a mass of 90
grams and a volume of 10 mL.
What is its density?
Think-Group-Share
A metal box has a mass of 90
grams and a volume of 10 mL.
What is its density?
 Density = Mass/Volume =...
Think-Group-Share
The density of nickel is
8.99 g/mL. The density of zinc is
7.1 g/mL. Is the metal box made
of nickel or ...
Think-Group-Share
The density of nickel is
8.99 g/mL. The density of zinc is
7.1 g/mL. Is the metal box made
of nickel or ...
Think-Group-Share
What is the volume of the box?
 It sinks in alcohol.
10 cm
5 cm
2 cm
Mass = 300 grams
Think-Group-Share
What is the volume of the box?
 100 cm3
V = LxWxH = 10 cm x 5 cm x 2 cm
= 100 cm3
10 cm
5 cm
2 cm
Mass ...
Think-Group-Share
What is the density of the box?
10 cm
5 cm
2 cm
Mass = 300 grams
Think-Group-Share
What is the density of the box?
 3 g/cm3
D = Mass/Volume = 300g/100cm3
= 3 g/cm3
10 cm
5 cm
2 cm
Mass =...
Think-Group-Share
The density of water is 1.0 g/mL.
Will the box float or sink in water?
10 cm
5 cm
2 cm
Mass = 300 grams
Think-Group-Share
The density of water is 1.0 g/mL.
Will the box float or sink in water?
 It will sink in water.
3 g/cm3 ...
Think-Group-Share
What liquid is A?
A
B
C
D
E
Think-Group-Share
What liquid is A?
 vegetable oil
A
B
C
D
E
Think-Group-Share
What liquid is B?
A
B
C
D
E
Think-Group-Share
What liquid is B?
 water
A
B
C
D
E
Think-Group-Share
What liquid is C?
A
B
C
D
E
Think-Group-Share
What liquid is C?
 Dawn
A
B
C
D
E
Think-Group-Share
What liquid is D?
A
B
C
D
E
Think-Group-Share
What liquid is D?
 Karo Syrup
A
B
C
D
E
Think-Group-Share
What liquid is E?
A
B
C
D
E
Think-Group-Share
What liquid is E?
 Honey
A
B
C
D
E
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CST Review_Density

  1. 1. CST Review Density
  2. 2. CST Review Density
  3. 3. Page 74
  4. 4. CST Review Questions
  5. 5. How is density calculated? IV. Density can be calculated using the following formula: Density = Mass Volume Density = g mL
  6. 6. Mass Volume What is speed? The density equation can be rewritten to solve different types of density problems. Density =
  7. 7. Mass Density Formula You can rewrite the Density Formula Density Volume
  8. 8. CST Review Questions
  9. 9. CST Review Questions
  10. 10. Mass Volume What is speed? The density equation can be rewritten to solve different types of density problems. Density =
  11. 11. Mass Density Formula You can rewrite the Density Formula Density Volume
  12. 12. 5 CST Review Questions
  13. 13. 5 CST Review Questions
  14. 14. Mass Density Formula You can rewrite the Density Formula Density Volume
  15. 15. Mass Density Formula You can rewrite the Density Formula Density Volume
  16. 16. 5 CST Review Questions Mass = Density X Volume
  17. 17. 5 CST Review Questions Mass = Density X Volume Brick MassA = ? Brick MassB = ? Air MassC = ? Air MassD = ?
  18. 18. 5 CST Review Questions Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = ? Air MassC = ? Air MassD = ?
  19. 19. 5 CST Review Questions Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = ? Air MassD = ?
  20. 20. 5 CST Review Questions Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = ?
  21. 21. 5 CST Review Questions Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = 1 X 10000 = 10000
  22. 22. 5 CST Review Questions Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = 1 X 10000 = 10000
  23. 23. 5 CST Review Questions Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = 1 X 10000 = 10000
  24. 24. CST Review Questions 31
  25. 25. Why is density important? V. Density determines what things will sink and float in a given liquid.
  26. 26. CST Review Questions 31
  27. 27. CST Review Questions 31
  28. 28. 19 CST Review Questions
  29. 29. Why is density important? A. If an object has LESS density than the liquid it will FLOAT. The ball has LESS density than water. density of ball = less than water
  30. 30. Why is density important? B. If an object has MORE density than the liquid it will SINK. The ball has MORE density than water. density of ball = more than water
  31. 31. CST Review Questions 19
  32. 32. CST Review Questions Less 19
  33. 33. CST Review Questions Less Less 19
  34. 34. CST Review Questions Less Less Less 19
  35. 35. CST Review Questions Less Less Less More 19
  36. 36. CST Review Questions Less Less Less More 19
  37. 37. 18 CST Review Questions
  38. 38. Mass Density Formula You can rewrite the Density Formula Density Volume
  39. 39. Mass Density Formula You can rewrite the Density Formula Density Volume
  40. 40. CST Review Questions 18 Density = Mass Volume 1. Density = 89g = 8.9 g/mL 10mL
  41. 41. CST Review Questions 18 1. Density = 89g = 8.9 g/mL 10mL 2. Density = 26g = 2.6 g/mL 10mL 3. Density = 24g = 0.24 g/mL 100mL 4. Density = 160g = 1.60 g/mL 100mL
  42. 42. CST Review Questions 18 1. Density = 89g = 8.9 g/mL 10mL 2. Density = 26g = 2.6 g/mL 10mL 3. Density = 24g = 0.24 g/mL 100mL 4. Density = 160g = 1.60 g/mL 100mL Less than 1.0 g/mL
  43. 43. CST Review Questions 18
  44. 44. Density Review
  45. 45. Think-Group-Share An object has a mass of 50g and a volume of 5 mL. What is its density?
  46. 46. Think-Group-Share An object has a mass of 50g and a volume of 5 mL. What is its density?  10 g/mL Density = Mass/Volume = 50g/5mL = 10g/mL M D V M D V
  47. 47. Think-Group-Share An object will sink in water because its density is ____ the density of the water.  A. higher than  B. lower than  C. the same as
  48. 48. Think-Group-Share An object will sink in water because its density is ____ the density of the water.  A. higher than  B. lower than  C. the same as
  49. 49. Why is density important? C. If an object has MORE density than the liquid it will SINK. The ball has MORE density than water. density of ball = more than water
  50. 50. Think-Group-Share An object will float in water because its density is ____ the density of the water.  A. higher than  B. lower than  C. the same as
  51. 51. Think-Group-Share An object will float in water because its density is ____ the density of the water.  A. higher than  B. lower than  C. the same as
  52. 52. What makes things float and sink? A. If an object has LESS density than the liquid it will FLOAT. The ball has LESS density than water. density of ball = less than water
  53. 53. Think-Group-Share What is density?  A. the amount of matter in an object  B. the mass per unit volume  C. the amount of space an object takes up
  54. 54. Think-Group-Share What is density?  the amount of matter in an object  B. the mass per unit volume  the amount of space an object takes up
  55. 55. What is density? III. Density is an object’s mass per unit volume. feathers rocks
  56. 56. Think-Group-Share A boy pours 10 mL of water into a graduated cylinder and drops a marble into it. The water rises to 20mL. What is the volume of the marble?
  57. 57. Think-Group-Share A boy pours 10 mL of water into a graduated cylinder and drops a marble into it. The water rises to 20mL. What is the volume of the marble?  10 mL Volume = 20mL - 10mL = 10mL
  58. 58. Measuring the Volume of an Irregular Solid Volume of object + water _____ -Volume of water______ - _____ Volume of object _____ mL mL10 20 10 ml 20 ml 10 ml Volume = _________10 ml
  59. 59. Think-Group-Share What is the volume of a rectangular box that has a length = 6 cm, width= 2 cm, height = 3 cm?
  60. 60. Think-Group-Share What is the volume of a rectangular box that has a length = 6 cm, width= 2 cm, height = 3 cm?  36 cm3 Volume = LxWxH = 6cm x 2cm x 3cm = 36 cm3
  61. 61. Volumes are calculated using a formula. Volume (box) = length X width X height How is volume measured? Volume (ball) = 4/3 X pi X radius3
  62. 62. Think-Group-Share A bottle holds 100 mL. It has a density of 3 g/mL. What is its mass?
  63. 63. Think-Group-Share A bottle holds 100 mL. It has a density of 3 g/mL. What is its mass?  300 g mass = volume x density = 100 mL x 3 g/mL = 300 g M D V M D V
  64. 64. Think-Group-Share A box has a mass of 60g and a density of 10 g/mL What is its volume?
  65. 65. Think-Group-Share A box has a mass of 60g and a density of 10 g/mL What is its volume?  6 mL volume = mass/density = 60g/10g/mL = 6 mL M D V M D V
  66. 66. Think-Group-Share Water has a density of 1.0 g/mL. Alcohol has a density of 0.81 g/mL. A ball has a density of 0.9g/mL. Will it float in water or alcohol?
  67. 67. Think-Group-Share Water has a density of 1.0 g/mL. Alcohol has a density of 0.81 g/mL. A ball has a density of 0.9g/mL. Will it float in water or alcohol?  It floats in water.
  68. 68. Class Work Volume and Density Practice Problems Water has a density of 1.0 g/mL. Alcohol has a density of 0.81 g/mL. A ball has a density of 0.9g/mL. Will it float in water or alcohol? Less Density Than Water 1.0 g/mL 0.9 g/mL
  69. 69. Think-Group-Share Water has a density of 1.0 g/mL. Alcohol has a density of 0.81 g/mL. A ball has a density of 0.9g/mL. Will it sink in water or alcohol?
  70. 70. Think-Group-Share Water has a density of 1.0 g/mL. Alcohol has a density of 0.81 g/mL. A ball has a density of 0.9g/mL. Will it sink in water or alcohol?  It sinks in alcohol.
  71. 71. Class Work Volume and Density Practice Problems Water has a density of 1.0 g/mL. Alcohol has a density of 0.81 g/mL. A ball has a density of 0.9g/mL. Will it sink in water or alcohol? More Density Than Alcohol 0.81 g/mL 0.9 g/mL
  72. 72. Think-Group-Share A metal box has a mass of 90 grams and a volume of 10 mL. What is its density?
  73. 73. Think-Group-Share A metal box has a mass of 90 grams and a volume of 10 mL. What is its density?  Density = Mass/Volume = 9 g/mL M D V M D V
  74. 74. Think-Group-Share The density of nickel is 8.99 g/mL. The density of zinc is 7.1 g/mL. Is the metal box made of nickel or zinc?  9 g/mL
  75. 75. Think-Group-Share The density of nickel is 8.99 g/mL. The density of zinc is 7.1 g/mL. Is the metal box made of nickel or zinc?  It is made of nickel 9 g/mL = density
  76. 76. Think-Group-Share What is the volume of the box?  It sinks in alcohol. 10 cm 5 cm 2 cm Mass = 300 grams
  77. 77. Think-Group-Share What is the volume of the box?  100 cm3 V = LxWxH = 10 cm x 5 cm x 2 cm = 100 cm3 10 cm 5 cm 2 cm Mass = 300 grams
  78. 78. Think-Group-Share What is the density of the box? 10 cm 5 cm 2 cm Mass = 300 grams
  79. 79. Think-Group-Share What is the density of the box?  3 g/cm3 D = Mass/Volume = 300g/100cm3 = 3 g/cm3 10 cm 5 cm 2 cm Mass = 300 grams
  80. 80. Think-Group-Share The density of water is 1.0 g/mL. Will the box float or sink in water? 10 cm 5 cm 2 cm Mass = 300 grams
  81. 81. Think-Group-Share The density of water is 1.0 g/mL. Will the box float or sink in water?  It will sink in water. 3 g/cm3 is greater than 1 g/mL 10 cm 5 cm 2 cm Mass = 300 grams
  82. 82. Think-Group-Share What liquid is A? A B C D E
  83. 83. Think-Group-Share What liquid is A?  vegetable oil A B C D E
  84. 84. Think-Group-Share What liquid is B? A B C D E
  85. 85. Think-Group-Share What liquid is B?  water A B C D E
  86. 86. Think-Group-Share What liquid is C? A B C D E
  87. 87. Think-Group-Share What liquid is C?  Dawn A B C D E
  88. 88. Think-Group-Share What liquid is D? A B C D E
  89. 89. Think-Group-Share What liquid is D?  Karo Syrup A B C D E
  90. 90. Think-Group-Share What liquid is E? A B C D E
  91. 91. Think-Group-Share What liquid is E?  Honey A B C D E

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