When something vibrates, it pushes particles of matter and causes them to compress. That compression then creates another next to it, and these compressions travel through matter as a wave of energy. These are sound waves. The sound waves travel through the air and to our ears and cause our eardrums to vibrate, helping us hear.
The atomic theory of matter tells us that a gas is made up of tiny particles called atoms (or molecules, which are combinations of atoms), which are constantly in motion, smashing into each other and the walls of whatever container they might be in. Here is a highly visual model of this idea.
Part(icles) of Your World: Crash Course Kids #3.2 by thecrashcourse:Part(icles) of Your World: Crash Course Kids #3.2 Have you ever heard the phrase, "You look like a Million Bucks?" Well, you do… but you also look like a million particles. In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles. Also, she shows us how matter can change states from a solid to a liquid, a liquid to a gas, or