The Metric System

1
The Metric System
2
Essential Question

• How is the metric system useful to us? Why is it
  important?

3
General Info

• Also called the International System of
  Measurement. (SI system)
• Based on multiples of 10.
• Standard system of measurement.

4
Standard Units

• Length
• Volume
• Mass
• Time
• Temperature

5
Converting one metric unit to another

• Go down (smaller)decimal to the right.
• Go up (larger)decimal point goes to the left.

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Practice Problems
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Volume and Area
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Practice Problems
9
Reading a meniscus
Reading a meniscus When a liquid is placed in a
piece of laboratory equipment such as a graduated
cylinder, buret, or a beaker, you will notice a
"curve" at the surface of the liquid. This curve
is known as the meniscus. As the diameter of the
container decreases, the meniscus becomes more
pronounced. The meniscus may be convex (curving
upward) or concave (curving downward). Most of
the time you will find that the meniscus is
concave. The most notable exception is the
meniscus that forms from mercury. When taking
measurement readings it is important that the
reading is done properly. The following rules
must be adhered to
Reading a meniscus When a liquid is placed in a
piece of laboratory equipment such as a graduated
cylinder, buret, or a beaker, you will notice a
"curve" at the surface of the liquid. This curve
is known as the meniscus. As the diameter of the
container decreases, the meniscus becomes more
pronounced. The meniscus may be convex (curving
upward) or concave (curving downward). Most of
the time you will find that the meniscus is
concave. The most notable exception is the
meniscus that forms from mercury. When taking
measurement readings it is important that the
reading is done properly. The following rules
must be adhered to
                                                
        The bottom of this meniscus is between
6.0 and 6.1 mL. The correct reading is 6.07 mL.
                                                
        The bottom of this meniscus is between
6.0 and 6.1 mL. The correct reading is 6.07 mL.