* Gas: Gas molecules are in constant random motion and have a very weak attraction to each other. This means they are free to move around and spread out to fill the entire volume of their container.
* Plasma: Plasma is a superheated gas where electrons have been stripped from the atoms, creating free-moving charged particles. Like gases, plasma will also fill the entire volume of its container.
Liquids and solids do not fill the entire volume of their container.
* Liquid: Liquid molecules have a stronger attraction to each other than gas molecules, but they still have some freedom of movement. They will fill the bottom of the container, but not the entire volume.
* Solid: Solid molecules are tightly packed together and have a fixed shape. They will not change shape to fill the container.
Let me know if you have any other questions!
