* Liquids: Liquids are defined by their ability to flow and take the shape of their container.

* Gases: Gases are even more free-flowing than liquids. They expand to fill their container and have no fixed shape.

* Solids: While solids have a fixed shape, they can still exhibit some flow under certain conditions. Think of glaciers slowly moving over time, or how metals can be molded under intense pressure.

Let me know if you'd like more detail on any of these states of matter!