Solution to

Meter. The term "metric" comes from *metre *(American spelling: meter),

Frame 4-5.

the unit of length. This term was derived from the Greek word *metron *(to

measure). As previously stated, a meter is defined as the distance light

mass

travels in a vacuum in one 299,792,458th of a second (about 1.1 yard).

mass

In the metric system, the basic unit of length is the

,

which is a little longer than the yard of the U.S. system.

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Solution to

Liter. The liter is equal to the volume of a cube measuring one decimeter

Frame 4-6.

(1/10 of a meter) on each side. A liter is equal to about 1.06 liquid

quarts.

meter

In the metric system, the basic unit of volume is the

,

which is a little more than the quart of the U.S. system.

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Solution to

Gram. The gram is the mass of one cubic centimeter (a cube measuring

Frame 4-7.

1/100 meter on each side) of pure water at 4 degrees Celsius (about 39

degrees Fahrenheit) at sea level. This temperature is used because

liter

water has the highest concentration (density) at this temperature. Sea

level ensures a stable gravitational pull and atmospheric pressure. A

gram is equal to about 0.0022 pounds (about 454 grams to the pound)

In the metric system, the basic unit of mass (weight) is the

,

which is a little more than 1/30 of an ounce of the U.S. system.

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MD0900

4-4

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