01. Solid
A solid state of matter has a fixed volume and shape with atoms that are bound tightly to each other that make it resistant to change. They can only change if they are cut or broken by force. The atoms being bound tightly together causing it to become compressed so it can only vibrate, not flow.
02. Liquid
A liquid state of matter has no shape and takes the shape of the container that holds it. Atoms in a liquid, although also bound together, are temporary thus allowing them to move freely and flow.
03. Gas
A typical gas, such as oxygen or hydrogen, is made of molecules that have a net charge of zero, giving the gas volume as a whole a net charge of zero.
Free charged particles, usually in equal numbers, such as ions and electrons. Plasmas, being made of charged particles, may have a net charge of zero over their whole volume but not at the level of individual particles. Unlike gases therefore, plasma may self-generate magnetic fields and electric currents, and respond strongly and collectively to electromagnetic forces. i.e. Being made of charged particles, plasmas can do things gases cannot, like conduct electricity and since moving charges make magnetic fields, plasmas also can have them. Plasma can be held in place by magnetic fields and most fusion power research is focused on that.
