We all feel pressure, but what is it? In the air that surrounds us, the pressure it exerts is a surprisingly strong force. In the pressure-packed The Collapsing Can: Pressure is a Force Demonstration—ChemTopic™ Lab Activity, demonstrate with a collapsing can that air is a powerful force. Available as part of The Gas Laws—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.