Physical Classification Of Matter

Plasma : Plasma (a mixture of free electrons and ions) is the fourth state of matter  (e.g. fluorescent tube or neon sign)

Plasma is an ionised gas, a gas to which sufficient energy is provided to get free electrons from atoms or molecules to allow both the species, ions and electrons to coexist. It exists in the presence of high temperature.
 

Ex:  The gases in the sun and stars exist in plasma state.    

Bose – Einstein-condensate (BEC) : It is the fifth state of matter obtained by cooling extremely low density gas to super low temperature.

Bose-Einstein condensate is a super fluid phase formed by atoms, cooled very near to absolute zero temperature. It is opposite to plasma state as it occurs at very low temperature.
 

Ex:  First condensate was produced by Rubidium  atoms (Rb) cooling to 170 nanokelvin.