The Elites Credit goes to:
Mr. Briber (mentor)
Alex Brush Mr. Kliewer
Brandon Stiles Mrs. McDougal
Erick Box Nick Holland
Reihia Todd Tye Barba
And nameless angels
Purpose: To test our PowerAde bottle
device to contain air pressure and be able
to confirm a pressure drop with increase of
Our team’s hypothesis is that the air
pressure within the bottle will equalize to
the outside air pressure as the altitude
First we went through our checklist in which
we made sure that every component was in
place and we had all of our equipment ready
for use. We then sent up our balloon on a kite
reel. After waiting for ten minutes we brought
the balloon down to make a measurement on
the air pressure. We had failed to open the
valve before launching, causing us to re-
launch. Again we had another error which
caused us to re-launch.
Problems Problems Fixed
• Our two toy balloons • We had added four
did not have enough more balloons and
lift to carry our one large helium
experiment. filled balloon to give
• SOMEONE didn’t it enough lift.
open the one-way • We opened the one-
• SOMEONE let the air
pressure in the bottle • We solved the last
equalize at ground problem by collecting
level when they were data from other
not concentrating on people to complete
their job. our experiment.
Pressure Temperature Test
Ideal Gas Law- P*V=n*R*T
Pressure * Volume=Constant*Temperature
To prove that our air pressure bottle worked we
performed a test using the Ideal Gas Law.
P(initial)=The Bottle’s Pressure was103kpa at
temperature of approx. 373K (bottle in boiling
P(final)=87.5kpa at a temperature of approx. 290K
Calculated pressure change -20kpa over this temp.
drop. Actual difference was -15.5kpa.
This agrees within 22.5% of our calculation.
Test of Bottle Result
Seconds Pressure (kpa)