Measuring
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Measuring. Objective: At the end of this lesson students will understand and be familiar with basic scientific units of measure. Using a Metric Ruler. In science a metric ruler is used. The units on a metric ruler are called centimeters (cm) and millimeters (mm). The Marks on a R uler.

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Measuring

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Measuring

Measuring

Objective: At the end of this lesson students will understand and be familiar with basic scientific units of measure.


Using a metric ruler

Using a Metric Ruler

  • In science a metric ruler is used. The units on a metric ruler are called centimeters (cm) and millimeters(mm).


The marks on a r uler

The Marks on a Ruler

  • Each of the long marks on a metric ruler represents one centimeter (cm).

  • Each of the short marks on a metric ruler represents one millimeter (mm).

  • There are 10 small marks or millimeters (mm) in every centimeter (cm).


How long are the following lines in millimeters and centimeters

How long are the following lines in millimeters and centimeters?

0.8

8

1.1

11

0.4

4


Liquid measure

Liquid Measure

  • Scientists use liters (L) and milliliters (mL) to measure liquids.

  • 1000 mL is equal to 1 L


Taking accurate l iquid m easurements

Taking Accurate Liquid Measurements

  • When measuring a liquid you must measure at the base of the meniscus.


Dry measure

Dry Measure

  • Scientists measure dry material in grams (g) and milligrams (mg).

  • 1000 mg is equal to 1g


Temperature

Temperature

  • Scientists use the Celsius or Kelvin scale to measure temperature.


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