Name _____________________________________________________ Period____________ Date___________
Density Practice Problems – Version A
1. Write the formulas for Density and Volume in the space below:
a. Density _- Mass/Volume
b. Volume L*W*H
2. Match the ways of measuring matter to their definitions:
Mass C
a. The amount of space an object occupies
Volume A
b. The amount of matter in a given volume
Density B
c. The amount of matter in an object
3. A 100 ml balloon is filled with a mass of 0.196g of helium gas. What is the density of the
gas?
.002 g/ml
4. A brick with a volume of 150 cm3 has a mass of 1200g. What is it’s density?
8 g/cm3
5. 5.0 mL of ethanol has a mass of 3.9 g, and 5.0 mL of benzene has a mass of 44 g. Which liquid
is denser?
Benzene (8.8 g/ml)
Ethanol (1.3 g/ml)
6. Calculate the density of a rectangular block of wood if:
Length – 4cm
Width - 8cm
Volume – 96cm3
Height – 3cm
Density - .52 g/cm3
Mass – 50g
7. Calculate the density of a cube of copper with a mass of 89.6g and a width of 3cm
3.3 g/cm3
8. An irregularly shaped stone was lowered into a graduated cylinder holding a volume of
water equal to 2 ml. The height of the water rose to 7 ml. If the mass of the stone was 25 g,
what was its density?
5 g/ml
9. What is the density of pure water?
1 g/ml
or
1 g/cm3
10. Decide if the following objects will SINK or FLOAT
a. Nerf ball, .72 g/cm3 - Float
b. Koosh ball, 1.05 g/cm3 Sink
c. Basketball, .93 g/cm3 Float
d. Baseball, 2.4 g/cm3 Sink
Name _____________________________________________________ Period____________ Date___________
Density Practice Problems – Version B
1. Define the following:
Mass – The amount of matter in an object
Volume – The amount of space an object takes up
Density - The amount of mass in a given volume
2. An irregularly shaped stone was lowered into a graduated cylinder holding a volume of
water equal to 2 ml. The height of the water rose to 7 ml. If the mass of the stone was 25 g,
what was its density?
5 g/ml
3. Calculate the density of a cube of copper with a mass of 89.6g and a width of 3cm
3.3 g/cm3
4. A cup of milk has a volume of 215ml. The density of milk is 1.3 g/ml. What is mass of the
milk?
279.5 g
5. A sample of ethanol (density =.81 g/ml) has a mass of 28 g, and a sample of benzene (density
.75 g/ml) has a mass of 32g. Which sample has the larger volume?
Ethanol (34.6 ml)
Benzene (42.7 ml)
BENZENE has a greater volume
6. Silver has a density of 10.5 grams/cm3 and gold has a density of 19.3 g/cm3. Which
would have the greater mass, 5cm3 of silver or 5cm3 of gold?
52.5 g of silver,
96. 5 g of gold,
GOLD has a greater mass
7. Five mL of hydrogen peroxide has a mass of 3.9 g, and 5.0 mL of ethanol has a mass of
44 g. Which liquid is denser?
Ethanol
8. Decide if the following objects will SINK or FLOAT
e. Nerf ball, .72 g/cm3_Float
f. Koosh ball, 1.05 g/cm3 Sink
g. Basketball, .93 g/cm3 Float
h. Baseball, 2.4 g/cm3 Sink
10. Practical Which has the greater density, a dictionary or a ball bearing? First predict based on your
senses, then use the appropriate tools to determine the answer.
1. Prediction:
2. Actual density of
a. Dictionary
b. Ball Bearing