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Measuring the density of a 3d printed object

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Apparatus needed
  • 3D printed objects
  • Eureka can
  • Weighing scales or top pan balance
  • Measuring cylinders
  • Water
Risk assessment

If you are doing this activity in a normal classroom take care with water spilling onto electrical appliances
Method
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Record the dry mass of the 3d printed object using a top pan balance.
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Use a suitable sized Eureka can, fill it up with water to just below the spout.
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Place a measuring cylinder under the spout of the can, you will need someone to hold it in place for you.
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Very carefully add the 3d printed object to the Eureka can. You may find at the object floats. Very carefully push the object so it is completely submerged.
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Collect the displaced water in the measuring cylinder and record it in your book.
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Calculation

To calculate the density of the object divide the mass (g) by the volume (cm3)


Extension

What did you notice about your model when you removed it from the Eureka can?

Where has this water come from?

Do you think that this will affect your results?