Q uic kTim e™
Quick Time™ a nd a TIFF (Un co mp res se d) d ec ompre sso r a re n ee de d to se e th is p ictu re .
By Mrs. S. Deringer
and a T I FF ( Unc om pr es sed) dec om pr ess or ar e
needed t o see t his pict ur e.
I knew I shouldn’t
have eaten all that
air.
QuickTime™ and a TIFF (Unc ompress ed) decompressor are needed to see this pict ure.
AIR
AIR
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
What is in the Air?
People generally believe that air is composed mostly of oxygen. In
fact, they frequently use the terms "air" and "oxygen"
interchangeably. This is a misconception. The content of oxygen in
the air is relatively small when compared to the gas nitrogen.
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
Air Pressure is .
the force that air molecules push
down on a surface.
QuickTime™ and a TIFF (Unc ompress ed) decompressor are needed to see this pict ure.
AIR
AIR
Hey!!
AIR
Get away from
me!
AIR
QuickTime™ and a TIFF (Unc ompress ed) decompressor are needed to see this pict ure.
AIR
AIR
AIR
AIR
It’s all around us. . .
Like it or not…
Air Pressure is . . .
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
Air Pressure. . . .
is not the same
everywhere on
earth.
3 Things that affect Air Pressure are
Humidity
Altitude
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
Temperature
Air pressures decreases
whenever,
Altitude
Temperatu
Humidity
re
or
increases.
Temperature Affects Air Pressure
lower
Warmer air brings ______
pressure.
air
Temperature Affects Air Pressure
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
Qu i c k Ti m e ™ a n d a TI FF (U n c o m p re s s e d ) d e c o m p re s s o r a r e n e e d e d to s e e th i s p i c tu re .
Qu ickT ime™ an d a T IFF (Unc omp ress ed) d ecom pres sor are n eede d to see this pictu re.
Qu i c k Ti m e ™ a n d a TI FF (U n c o m p re s s e d ) d e c o m p re s s o r a r e n e e d e d to s e e th i s p i c tu re .
Q uic kTim e™
Qu i c k Ti m e ™ a n d a TI FF (U n c o m p re s s e d ) d e c o m p re s s o r a re n e e d e d to s e e th i s p i c tu re .
and a T I FF ( Unc om pr es sed) dec om pr es sor ar e
needed
t o see t his pict u r e.
As the altitude the
increases
air pressure
decreases
Qu ickT ime™ an d a TIFF (Unc omp ress ed) d eco mpre sso r are need ed t o see this pic ture.
The people at the bottom of the pyramid can feel all the weight and
pressure of the people on top (high pressure). The person on the top
doesn’t feel any weight (less pressure)
In addition to gases, the air also
contains moisture.
As the humidity or
moisture in the air
increases the air
pressure decreases
In Low Air Pressure, the air
molecules are moving fast
and are far
apart.
In High Air Pressure, the air
molecules are moving slow
and are close
.
together
Could Air Crush a Metal Tank Car ?????
The inside of this tank car was washed out and cleaned
with HOT steam. Then all the outlet valves were shut .
The tank car was sealed. All the workers went home for
the evening. In the morning when they returned this is
what they found.
This tank car was smashed, crushed, or collapsed by an
unseen force why?
As humidity
increases . .
Air
pressure
decreases
As altitude
increases . .
Air
pressure
decreases
As temperature
increases . .
Air
pressure
decreases
Low Air Pressure
L
Low air pressure brings
.
PRECIPITATION
High Air Pressure
H
High air pressure brings clear
skies
and fair
weather.
High and Low Pressure
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
A barometer is used to
measure
air
Q uic kTim e™
and a T I FF ( Unc om pr es sed) dec om pr ess or ar e
needed t o see t his pict ur e.
Qu i c k T i m e ™ a n d a T IFF ( Un c o m p re s s e d ) d e c o m p re s s o r a re n e e d e d to s e e th i s p i c tu re .
Qui ckTi me™ and a TIFF ( Uncompressed) decompressor are needed to see this pictur e.
Q uic kTim e™
Q uic kTim e™
and a TI FF ( Unco m pr esse d) decom pr essor
ar e nee ded t o s ee t his
and a
TI FF ( Un com pr e ssed) d ecom pr essor a r e need ed t o se e t his p ict ur e.
pict ur e.
Q uic kTim e™
and a TI FF ( Unc om pr ess ed) deco m pr ess or ar e n eeded t o
see t h is pict ur e .
Barometer
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
Air Pressure Review
• A low pressure system brings ___________
precipitation weather.
• A high pressure system brings __________
weather.
clear
• As the humidity or amount of moisture in the air increases the air
decreases
pressure _________.
decreases
• As the air temperature gets warmer the air pressure ___________.
decreases
• The higher up you go air pressure ___________.
slow
• In high air pressure the air molecules are moving __________
and
close together
are _________________.
• In low air pressure the air molecules are moving __________
and
fast
are ______________________.
far apart
barometer
• A ____________________
measures air pressure.