OBSERVATION

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OBSERVATION
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OBSERVATION

• Using senses measurements to learn about
  something

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• Use DETAILS to make a good observation

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Large, small, tiny, many, and few are not good
adjectives to use. They can be misinterpreted!
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The best way to use size in an observation is to
measure.
This is called a quantitative observation
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Think of QUANTITIES or numbers used to count
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The standard system for measurement is the metric
system.
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The term metric means measurement
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Linear Measurement
Measuring along a straight line using a ruler
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The standard linear measurement is the meter.
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Metric Ruler Units
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Each small division is a millimeter (mm)
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Every ten millimeters 1 centimeter (cm)
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Therefore, each little line (mm) is also 1/10 or
0.1 of a centimeter.
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The term CENTI means 1/100 or 0.01
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Therefore, a centimeter is one hundredth (1/100)
or 0.01 of a meter.
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How would you record the following measurement?
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This measurement would be 1.8 cm.
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You must always use the UNITS of how you
measured!! Meters (m), centimeters (cm), or
millimeter (mm).
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During any type of experiment, the DATA (or
information) you collect is only as good as how
you observed and recorded it. Make GOOD
OBSERVATIONS!