Mr. Pearl – Earth Science
WPHS
NAME:
DATE:
5. A barometer measures the atmosphere’s
(1) density
(2) temperature
(3) volume
(4) volatility
For the following pressure conversions, use page 13 of the ESRT.
6. Convert the following from millibars (mb)
to inches of mercury (in Hg)
7. Convert the following from inches of
mercury (in Hg) to millibars (mb)
 984.0 mb -

29.00 in –
 1000.0 mb -

28.70 in –
 1037.0 mb –

28.82 in –
 999.0 mb –

30.65 in –

30.03 in –
 986.5 mb –
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REMEMBER, AIR PRESSURE IS A RESULT OF THE ATMOSPHERE’S WEIGHT!
8. What creates air pressure and HOW do we
measure it?
9. Why is there less pressure higher in the atmosphere and more
pressure closer to sea level?
Air
molecules
10. What happens to a helium balloon as it rises in the Earth’s
atmosphere? WHY?
11. WHY WOULD IT BE A BAD IDEA FOR AN
ASTRONAUT TO REMOVE THEIR SPACESUIT’S
HELMET IN OUTER SPACE?
?