Plasma:
Plasma is considered the fourth state of matter. The three other states are solid, liquid, and gas. Plasma is a cloud of protons, neutrons and electrons where all the electrons have come loose from their respective molecules and atoms, giving the plasma the ability to act as a whole rather than as a bunch of atoms. A plasma is more like a gas than any of the other states of matter because the atoms are not in constant contact with each other, but it behaves differently from a gas. It has what scientists call collective behavior. This means that the plasma can flow like a liquid or it can contain areas that are like clumps of atoms sticking together.
Like i already said,Its the 4th form of matter, it is the form of matter found in universe most, it could be that not on earth but in the universe everything is made up of it, to explain it lets take thunder,Its a common example of plasma, just think that what is it solid, liquid or gas, no one, yes there are many people say its gas but no because they don't know there is also something like plasma and don't try to think there is a connection between blood plasma and this one, in this form of matter particals are not too close like solid, not close like liquid and not far like gas ,These are particals of plasma, plasma is made up with a group of positive and negative charged particles. Neon gas lets take it and in its plasma all electrones are bound to nucleus and they are free to move anywhere in neon plasma.
Bose-Einstein Condensate:
Bose-Einstein condensate, or BEC, is one of the best ways to see the weird effects of Quantum Mechanics on a macroscopic scale. In essence, BEC is a state of matter that's composed of weakly interacting bosons at a temperature very near absolute zero! Once this temperature has been reached, most of the bosons occupy the lowest quantum state of the external potential. BEC was first predicted by Satyendra Nath Bose and Albert Einstein around 1924.
Its the 5th form of matter, it is written theory many places but it was a theory but now its not, because now we have made it, its one example is liquid helium the most famous example,its just amazingly cold too close to 0 degree Kelvin, 270°C.