Here's what that means:

* Liquids can flow: They take the shape of their container because their particles can move past each other easily.

* Liquids are incompressible: Unlike gases, liquids cannot be easily squeezed into a smaller volume.

* Liquids have a definite volume: While they take the shape of their container, liquids maintain a constant volume.

Let me know if you'd like to explore other properties of liquids, like surface tension or viscosity!