* Gases and liquids are both fluids. This means they can flow and take the shape of their container.
* A gas can't be anything other than a gas. It's a state of matter, just like liquid and solid.
However, you might be thinking about the following:
* Plasma: This is often called the "fourth state of matter" and is a superheated gas where electrons are stripped from atoms. Plasma is found in lightning, fluorescent lights, and even the sun.
So, while a gas can't be something *other* than a gas, it *can* be a specific type of gas like plasma.
