Bottle cap contraption to add pressure to the bottle.
Will pumping the tire pump to add pressure to the graduated cylinder.
This is a video of us pumping air into the bottle which resulted in decrease in gas.
This shows as pressure increases, gas decreases. This explains the video above.
This is the whole bottle. In this photo the bottle is experiencing 7 atmospheres of pressure.
Will and Henry mentally preparing for their underwater experiment at Pali High.
This is a video of us releasing air out of the bottle which results in decrease in pressure and increase in gas.
This shows as pressure decreases, gas increases. This explains the video above.