Mystery Cube Density Lab



Name: ______________________________ Period: _____ A or B Date: ____________

Mystery Cube Density Lab

Purpose: To understand that density is a physical property which can be used to identify a substance.

Materials: Density cube set, ruler, triple beam balance

Procedure:

1. Find the mass of each cube using a triple beam balance and record the results to the hundredths place (2 decimal places) in the data table.

2. Find the volume of each cube (Length x Width x Height) and record results to the tenths place (1 decimal place) in the data table.

3. Calculate the density of each cube by dividing the mass by the volume and record the results to the nearest hundredths (two decimal places) in the data table.

4. Identify the mystery cubes based on their densities from the chart to the right.

Data:

|Cube # |Mass, m |Volume, V |Density |Identity? |

| |(g) |(cm3) |d = m/V | |

| | | |(g/cm3) | |

|1 | | | | |

|2 | | | | |

|3 | | | | |

|4 | | | | |

|5 | | | | |

|6 | | | | |

|7 | | | | |

|8 | | | | |

|9 | | | | |

|10 | | | | |

Questions:

1. Which material is the most dense?

2. Which material is the least dense? 1. 2.

3. Draw how the atoms are arranged in these two materials.

Name: ______________________________ Period: _____ A or B Date: ____________

Mystery Cube Density Lab

Purpose: To understand that density is a physical property which can be used to identify a substance.

Materials: Density cube set, ruler, triple beam balance

Procedure:

1. Find the mass of each cube using a triple beam balance and record the results to the hundredths place (2 decimal places) in the data table.

2. Find the volume of each cube (Length x Width x Height) and record results to the tenths place (1 decimal place) in the data table.

3. Calculate the density of each cube by dividing the mass by the volume and record the results to the nearest hundredths (two decimal places) in the data table.

4. Identify the mystery cubes based on their densities from the chart to the right.

Data:

|Cube # |Mass, m |Volume, V |Density |Identity? |

| |(g) |(cm3) |d = m/V | |

| | | |(g/cm3) | |

|1 | | | | |

|2 | | | | |

|3 | | | | |

|4 | | | | |

|5 | | | | |

|6 | | | | |

|7 | | | | |

|8 | | | | |

|9 | | | | |

|10 | | | | |

Questions:

1. Which material is the most dense?

2. Which material is the least dense? 1. 2.

3. Draw how the atoms are arranged in these two materials.

Name: ______________________________ Period: _____ A or B Date: ____________

Density Lab Continued…

Density of Water

Materials: Graduated cylinder, triple beam balance, water bottle

Procedure:

For Trial 1

1. Find the mass of an empty graduated cylinder (m1) using the triple beam balance. Record the

mass to the hundredths place (2 decimal places) in the data table for Trial 1.

2. Add a measurable amount of water to the graduated cylinder and record the volume of water to

the tenths place (1 decimal place) in the data table for Trial 1.

3. Find the mass of the graduated cylinder and water (m2). Record the mass to the hundredths place in the data table for Trial 1.

4. Use the original mass of the empty graduated cylinder and the mass of the graduated

cylinder with water to find the mass of water (mw). Record your answer to the nearest

hundredths in the data table for Trial 1.

5. Calculate the density of water and record it with 3 significant figures in the data table for Trial 1.

6. Lastly round your density answer to the nearest tenths in the last column.

For Trial 2

Repeat steps 1-6 from above, however use a different amount of water than what you did for step 2. Record all values in the data

table for Trial 2.

Data:

|m1

(g) |m2

(g) |Mass of water

mw = m2 - m1

(g) |Volume, V

(mL) |Density

d = m/V

(g/mL) |Density

(g/mL) | |Trial 1 | | | | | | | |Trial 2 | | | | | | | |

Density of a Cylinder Rod

Materials: Graduated cylinder, triple beam balance, water bottle, cylinder rod set

Procedure:

For Trial 1

1. Find the mass of the short cylinder rod using the triple beam balance and record the mass to the hundredths place (2

decimal places) in the data table for Trial 1.

2. Add 20.0 mL of water to the graduated cylinder. This is the initial volume (Vi).

3. Place the short cylinder rod into the graduated cylinder and record the final volume (Vf) to the tenths place (1 decimal

place).

4. Use the initial volume and the final volume to find the volume of the short cylinder (V). Record your answer to the nearest

tenths in the data table for Trial 1.

5. Calculate the density of the short cylinder rod and record it with 3 significant figures in the data table for Trial 1.

6. Lastly round your density answer to the nearest tenths in the last column.

For Trial 2

Repeat steps 1-6 from above, however use the taller cylinder rod. Record all values in the data table for Trial 2.

Data:

|m

(g) |Vi

(mL) |Vf

(mL) |Cylinder Rod Volume

V = Vf - Vi

(mL) |Density

d = m/V

(g/mL) |Density

(g/mL) | |Trial 1

(short cylinder) | | | | | | | |Trial 2

(tall cylinder) | | | | | | | |Name: ______________________________ Period: _____ A or B Date: ____________

Density Lab Continued…

Density of Water

Materials: Graduated cylinder, triple beam balance, water bottle

Procedure:

For Trial 1

1. Find the mass of an empty graduated cylinder (m1) using the triple beam balance. Record the

mass to the hundredths place (2 decimal places) in the data table for Trial 1.

2. Add a measurable amount of water to the graduated cylinder and record the volume of water to

the tenths place (1 decimal place) in the data table for Trial 1.

3. Find the mass of the graduated cylinder and water (m2). Record the mass to the hundredths place in the data table for Trial 1.

4. Use the original mass of the empty graduated cylinder and the mass of the graduated

cylinder with water to find the mass of water (mw). Record your answer to the nearest

hundredths in the data table for Trial 1.

5. Calculate the density of water and record it with 3 significant figures in the data table for Trial 1.

6. Lastly round your density answer to the nearest tenths in the last column.

For Trial 2

Repeat steps 1-6 from above, however use a different amount of water than what you did for step 2. Record all values in the data

table for Trial 2.

Data:

|m1

(g) |m2

(g) |Mass of water

mw = m2 - m1

(g) |Volume, V

(mL) |Density

d = m/V

(g/mL) |Density

(g/mL) | |Trial 1 | | | | | | | |Trial 2 | | | | | | | |

Density of a Cylinder Rod

Materials: Graduated cylinder, triple beam balance, water bottle, cylinder rod set

Procedure:

For Trial 1

1. Find the mass of the short cylinder rod using the triple beam balance and record the mass to the hundredths place (2

decimal places) in the data table for Trial 1.

2. Add 20.0 mL of water to the graduated cylinder. This is the initial volume (Vi).

3. Place the short cylinder rod into the graduated cylinder and record the final volume (Vf) to the tenths place (1 decimal

place).

4. Use the initial volume and the final volume to find the volume of the short cylinder (V). Record your answer to the nearest

tenths in the data table for Trial 1.

5. Calculate the density of the short cylinder rod and record it with 3 significant figures in the data table for Trial 1.

6. Lastly round your density answer to the nearest tenths in the last column.

For Trial 2

Repeat steps 1-6 from above, however use the taller cylinder rod. Record all values in the data table for Trial 2.

Data:

|m

(g) |Vi

(mL) |Vf

(mL) |Cylinder Rod Volume

V = Vf - Vi

(mL) |Density

d = m/V

(g/mL) |Density

(g/mL) | |Trial 1

(short cylinder) | | | | | | | |Trial 2

(tall cylinder) | | | | | | | |Post Lab Questions:

1. Was the density of water the same or closely similar for both trials?

2. Was the density of the cylinder rods the same or closely similar for both trials?

3. Physical properties of matter are categorized as either Intensive or Extensive:

• Intensive - Properties that do not depend on the amount of the matter present

• Extensive - Properties that do depend on the amount of matter present.

Would you consider Density to be an intensive or extensive property? Please explain using your results

from your data tables above.

____________________________________________________________________________________

____________________________________________________________________________________

Calculate the following:

1. Find mass, m? Round to 4 sig. figs. 2. Find volume, V? Round to 3 sig. figs.

given: V = 33.2 mL given: d = 2.00 g/cm3

d = 1.80 g/mL m = 16.90 g

Post Lab Questions:

1. Was the density of water the same or closely similar for both trials?

2. Was the density of the cylinder rods the same or closely similar for both trials?

3. Physical properties of matter are categorized as either Intensive or Extensive:

• Intensive - Properties that do not depend on the amount of the matter present

• Extensive - Properties that do depend on the amount of matter present.

Would you consider Density to be an intensive or extensive property? Please explain using your results

from your data tables above.

____________________________________________________________________________________

____________________________________________________________________________________

Calculate the following:

1. Find mass, m? Round to 4 sig. figs. 2. Find volume, V? Round to the 3 sig. figs.

given: V = 33.2 mL given: d = 2.00 g/cm3

d = 1.80 g/mL m = 16.90 g

4. For the following properties, categorize them as either an intensive or extensive property.

- Boiling point  - Color

- Ductility - Volume

- Malleability - Luster

- Odor - Length

- Mass - Melting point

- Hardness   - Weight 

- Conductivity  - Freezing point

Post Lab Questions:

1. Was the density of water the same for both trials?

2. Was the density of the cylinder rods the same for both trials?

3. Physical properties of matter are categorized as either Intensive or Extensive:

• Intensive - Properties that do not depend on the amount of the matter present

• Extensive - Properties that do depend on the amount of matter present.

Would you consider Density to be an intensive or extensive property? Please explain using your results

from your data tables above.

4. For the following properties, categorize them as either an intensive or extensive property.

- Boiling point  - Color

- Ductility - Volume

- Malleability - Luster

- Odor - Length

- Mass - Melting point

- Hardness   - Weight 

- Conductivity  - Freezing point

Conclusion:

In your own words, summarize what you have learned about this lab.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Calculate the following:

1. Find mass, m? Round to the nearest tenth. 2. Find volume, V? Round to the nearest tenth.

given: V = 33.2 mL given: d = 12 g/cm3

d = 1.8 g/mL m = 16.9 g

Conclusion:

In your own words, summarize what you have learned about this lab.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Calculate the following:

1. Find mass, m? Round to the nearest tenth. 2. Find volume, V? Round to the nearest tenth.

given: V = 33.2 mL given: d = 12 g/cm3

d = 1.8 g/mL m = 16.9 g

-----------------------

Known values for cube densities (g/cm3)

Acrylic = 1.2

Aluminum = 2.7

Brass = 8.9

Copper = 9.0-9.3

Oak = 0.6-0.9

Pine = 0.3-0.4

Poplar = 0.45-0.54

PVC (flexible) = 1.10-1.13

PVC (rigid) = 1.3-1.45

Steel = 7.6-7.9

Nylon = 1.14-1.16

Known values for cube densities (g/cm3)

Acrylic = 1.2

Aluminum = 2.7

Brass = 8.9

Copper = 9.0-9.3

Oak = 0.6-0.9

Pine = 0.3-0.4

Poplar = 0.45-0.54

PVC (flexible) = 1.10-1.13

PVC (rigid) = 1.3-1.45

Steel = 7.6-7.9

Nylon = 1.14-1.16

Intensive Extensive

Intensive Extensive

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