there is science in the air

knowing it is possible to lift someone by blowing into a large bag . . .


processes: measuring / interpreting data / graphing

type length width sq inches lbs to lift # per sq. in
lawn bag ________in ________in ________sq.in 200# __________psi
refrigerator ________in ________in ________sq.in 200# __________psi
sandwich ________in ________in ________sq.in 200# __________psi

To lift a 140 pound person and the 60 pound table means you need a total force of 200 pounds of air pressure. This 200 pound force comes from the "little forces" acting on all of those "square inches of bag"


process: graphing












___________________________________________
low pressure ------------------------ high pressure

5/4s/96