Question: Is it true that there are 4 states of matter which are liquids,solids, gases... and plasma which is what you get when you super heat gas?

Christie Waddington answered on 15 Jun 2016:

There are indeed 4 states of matter which are observable, which are solid, liquid, gas and plasma. In extreme situations you can get other states such as (here goes!):
Bose-Einstein condensates (in extreme cold), neutron-degenerate matter (in extreme density) and quark-gluon plasma (in extremely high-energy, colour-charged matter!).

Solids – closely-packed particles that cannot move around but can vibrate.
Liquids – Keeps the same volume but takes the shape of a container. Molecules are not tightly-packed together, but they still interact with each other through intermolecular forces.
Gases – Molecules have tons of energy, and they have very small (if any) intermolecular forces.

Plasma – these are like gases, except that they conduct electricity and can produce magnetic fields and electric currents. It’s quite common e.g. lightning, plasma TVs, electric sparks, the stars!

You are right in that if you can convert gas to plasma by heating it to a very high temperature. This causes electrons leave the atoms so you get free electrons , which is the plasma state. Another way is if two gases have completely different voltages (not sure how that one works though!).