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               2.          Select words from the list below to complete the following

                       sentences. Some of the words may be used more than once,
                       and you may have to make the word plural or change the tense.

                       Do not try to write the words in the spaces.

                              characteristic               barometer            convert

                              pressure                     mercurial            conversion

                              object                       aneroid barometer
                       a.   If you know the elevation, it isn't difficult to __________ the barometer reading

                          to sea level pressure.
                       b.  I guess we would say this is a ___________  thermometer; it has mercury in it.
                       c.  One of the __________ of the atmosphere is that it is mainly composed of oxygen
                          and nitrogen.
                       d.  In some countries standard sea level __________  is called "one atmos;" it is

                          probably an abbreviation for one atmosphere.
                       e.   When we want to find the length of an __________  we measure it; when we
                          want to know the ___________  weight, we weigh it.
                       f.   f. One way to remember the difference between the two types of barometers is
                          that the __________ __________ is made from metal.

                       g.   The ____________ of pounds to kilograms is not difficult; one kilogram equals 2.2
                          pounds.
                       h.  The ___________ of the atmosphere decreases as we go higher.
                       i.   A thermometer is used to measure any temperature, but a ___________ is only
                          used to measure atmospheric pressure.

                       j.  We have to know the standard atmospheric ____________ that we can compare
                          the day-to-day changes.
                       k.  The ___________ barometer uses two fluids to measure pressure, one is the
                          gas "air," the other is a liquid metal.
                       l.   The liquid "water" can be __________ to the solid "ice" by freezing.

                       m.    Since the __________ ___________ measures pressure mechanically, it should
                          be checked about once a week with the other type. n. If your mercurial barometer
                          has two scales, one in millibars : and the other in inches, there is no need to make
                          the _____________ from one to the other; you can read it directly.
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