Physical Characteristics of Gases
Aristotle viewed matter as being made up of _______, earth, ______, and ________. It wasn’t until Robert ___________ studied gases and proposed matter is made up particles called __________.
Pressure is known as the _________ per area on a _____________. Imagine squeezing a balloon. All the pressure that is felt is due to the _______________ of the gas particles that are moving around and bouncing off the ________ of the balloon. The SI unit for pressure is Pascal (____), however _________________ (atm) is used most frequently.