Measuring

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Measuring

• How to be
• PRECISE and ACCURATE

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How to Measure MASS
MASS the amount of MATTER in an object
measured in grams (gm) Triple Beam Balance
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• Place an object on the pan.
• Slide the rider with the largest mass along its
  beam until the pointer drops below zero.
• Move it back one notch.
• Repeat the process on each beam until the pointer
  stays at zero.
• Add the masses on each beam to find the mass of
  the object.

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How to Measure VOLUME
(Liquid Volume) The amount or liquid measured
in milliliters (ml)
Graduated Cylinder
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• A meniscus is the curve of the surface of the
  water in a graduated cylinder.
• Water "sticks" to the walls of the graduated
  cylinder, but only on the sides and not the
  middle. 
• When you look at the surface, the water level is
  not straight its curved like a smile. 

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• Measurement should be at the BOTTOM of the
  meniscus.
• Read the meniscus at eye level in to get an
  accurate reading.  read the meniscus at eye
  level.

Read the volume here
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How to Measure LENGTH
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• Most metric rulers have lines indicating
  centimeters and millimeters.
• The centimeter lines are the longer, numbered
  lines.
• The shorter lines are millimeter lines.
• When you use a metric ruler, line up the
  0-centimeter mark with the end of the object
  being measured.

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