Atmospheric pressure plays an essential role in respiration and the function of many devices, including water pumps, syringes and drinking straws. The video explains pascals and psi and includes a demonstration revealing the presence of atmospheric pressure.
Einstein came to the conclusion that gravity and acceleration were indistinguishable, this was a brilliant leap of imagination that redefined the universe.
This video describes how to use your video camera to determine the speed of sound. This is an excellent science fair project. Investigate the relationship between air temperature and the speed of sound.
Cartesian Divers - an interesting demonstration of the science behind sinking and floating. The device is easily constructed - a useful classroom demonstration.
