States of Matter: Plasma

A great explanation of what plasma is in Physics …

For Science!

At some point during your science studies, you would have been introduced to the idea of The Three States of Matter: solid, liquid, and gas. As you may have realised when thinking about, for example, the melting of glass, or contemplating the nature of a flame, this three state model doesn’t tell the whole story. Solid, liquid, and gas are more like three categories into which more specific states of matter fit. This series explores some of these states which perhaps don’t seem to fit neatly into the three states model as you may have learned it.

Plasma. No, we’re not talking about the watery part of blood. Plasma is often called “the fourth state of matter” because it’s what you get when you keep putting energy into a gas. (Recall: in the three states description of matter, solid + enough energy = liquid, liquid + enough…

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