Here's a breakdown:
* Waves are disturbances that transfer energy through a medium or space.
* Medium is the material through which a wave travels. It can be solid, liquid, or gas.
Examples:
* Sound waves: Travel through air (a gas), water (a liquid), and solids.
* Water waves: Travel through water (a liquid).
* Light waves: Can travel through a vacuum (no medium) and also through solids, liquids, and gases.
Important note: Light waves can travel through a vacuum, which means they don't require a medium to propagate. This is unlike sound waves, which require a medium to travel.
