Here's how it works:

* Vibrations: Sound is created by vibrations, which are rapid back-and-forth movements of particles.

* Medium: These vibrations need a medium (like air, water, or a solid) to travel.

* Transmission: The vibrations cause the particles in the medium to bump into each other, transferring energy. This process continues, creating a wave of sound.

How it differs in different mediums:

* Air: Sound travels through air by causing air molecules to vibrate.

* Water: Sound travels faster through water because the molecules are closer together, allowing vibrations to transfer more efficiently.

* Solids: Sound travels fastest through solids because the molecules are packed tightly together, creating a very efficient path for vibrations.

Let me know if you'd like to explore this further!