Believe it or not there are actually five states of matter, the traditional three that you have already learnt about previously (click here to get a reminder);
The additional two are Plasma and Bose-Einstein Condensates. Below is a brief introduction to them.
Plasma – This actually makes up most of the known matter in the universe!
Bose-Einstein Condensates – Don’t get scared by the use of the term ‘Quantum’
So the fifth state, the Bose-Einstein Condensate is a bit quirky really. It is extremely hard to achieve such a state because you need to cool things down to a fraction of a degree above absolute zero (-273.15). Getting things this cold is very difficult – even deep space has a temperature of 2.725 which is not cold enough to achieve this temperature!
For more information try the following video, it’s a little bit longer but it tells you where the coldest place in the solar system and probably universe is!