P2 strikes cinder block with hammer. After it breaks the bed of nails and guards are removed from P3. P3 should make a point of the nail marks on the back of the shirt. OK, Let's see what we have learned today. Air molecules exert a force on everything.
Pressure is the amount of force acting on an amount of area.
We'd be happy to take any questions. Back to Recipes for Science page Back to the MSU Science Theatre Welcome page .