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The Metric System

The Metric System. Making accurate and precise measurements. Metric system. The metric system (AKA International System of Units or S.I.) is a measuring system based on units of 10. Units in the S.I. are: meter (m), which is used for measuring length.

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The Metric System

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  1. The Metric System Making accurate and precise measurements

  2. Metric system • The metric system (AKA International System of Units or S.I.) is a measuring system based on units of 10. Units in the S.I. are: • meter(m), which is used for measuring length. • liter (l), whichis used to measure volume. • gram (g), whichis used to measure mass.

  3. Metric prefixes

  4. How to use a metric ruler 1. Begin on the 1cm mark and make your recording. 2. Subtract 1 from the number your recorded to get your answer. For example: 1.5cm - 1.0 cm = 0.5 cm • Make sure you include 1 digit after the decimal. This is usually an estimate.

  5. Let’s Practice • 3.85 cm - 1.0 cm = 2.85 cm

  6. How to read a graduated cylinder 1. Place the graduated cylinder on a flat surface. 2. Read from the bottom of the meniscus (bubble) at EYE LEVEL. 3. Again you want to estimate.

  7. How to use a triple-beam balance 1. Move all sliders to the left. 2. Check to see if the mark on the moving arm lines up with the 0 on the balance. 3. Place specimen on pan then move the sliders until the marks line up at 0.

  8. Let’s Practice

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