Measuring with a Graduated Cylinder

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Measuring Volume of Non-cubical ObjectsakaThe
Displacement Method

• Volume is a measurement of how much space matter
  takes up.

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Measuring Liquid Volume with a Graduated Cylinder

• Place the graduated cylinder on a flat surface.
• Never hold it up to your face.

• Get your eyes at level of the liquid in the
  cylinder so your sight line skims the top of the
  liquid.

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• Check to see if there is a meniscus present. A
  meniscus can make the liquid level appear higher
  than it is.
• Look at the bottom of the meniscus to get an
  accurate measurement.

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• You can accurately read a graduated cylinder to
  .5 mL.
• What is the volume shown?

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Volume By Displacement

• Fill the graduated cylinder at least halfway with
  water.
• Record the volume of the water.
• Drop the object into the water without splashing.

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• Record the volume of the water and the object
  together.
• Subtract the volume of the water from the volume
  of the water and object. This is the volume of
  the object.
• Remember- Convert liquid volume units (ml) to
  solid volume units (cm3)

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Todays Directions

• Find the volume of the cubical solids by
  measuring the length, width, and height with a
  ruler and then multiplying.
• Find the volume of the cubical solids by using
  the displacement method.
• Find the volume of the non-cubical solids by
  using the displacement method.
• Dont forget the correct units of measure.

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Volume By Displacement