Density

• What is the purpose of measuring density?

  To measure the density of an irregular object
• What is the method to measure the density of an irregular object?

  1. Measure the mass of the object.
  2. Place a displacement can on a stand.
  3. Fill the can with water until it drips from the spout.
  4. Wait until the water stops dripping.
  5. Place a measuring cylinder under the spout.
  6. Tie the object to a piece of cotton.
  7. Submerge the object in the can.
  8. Collect the water that comes out into the measuring cylinder.
  9. Measure and record the volume of the collected water.
  10. Calculate and record the density (mass/volume).
• What is the first step in measuring the density of an irregular object?

  Measure the mass of the object
• What should be done after filling the displacement can with water?

  Wait until the water stops dripping
• What is placed under the spout after the water stops dripping?

  A measuring cylinder
• What should be tied to the object before submerging it?

  A piece of cotton
• Why is the object submerged in the can?

  To displace water and measure volume
• What should be done with the water collected in the measuring cylinder?

  Measure and record the volume
• What does the volume of water collected equal?

  The volume of the irregular object
• How is density calculated after measuring mass and volume?

  Density = mass / volume
• What are the steps to calculate the density of an object?

  1. Measure the mass of the object.
  2. Measure the volume of displaced water.
  3. Use the formula: Density = mass / volume.