Here's a breakdown:
* Medium: The substance or material that a wave travels through. It can be solid, liquid, or gas.
* Wave: A disturbance that travels through a medium, transferring energy without transferring matter.
Examples:
* Sound waves: Travel through air, water, or solids.
* Light waves: Can travel through a vacuum (like space) as well as through air, water, and other transparent materials.
* Water waves: Travel through water.
* Seismic waves: Travel through the Earth's interior.