Plasma is often called the “fourth state of matter”, the other three being solid, liquid and gas. Plasma was identified by the English scientist William Crooks in 1879.
What is Plasma State?
In addition to being important in many aspects of our daily life, plasma are estimated to constitute more than 99% of the visible universe. Although, naturally occurring plasma is rare on earth, there are many man made examples.
Inventors have used plasma state to conduct electricity in neon signs and fluorescent bulbs. Scientists have constructed special chambers to experiment with plasma in laboratories.
It occurs only in lightning discharges and in artificial devices like fluorescent lights, neon signs, etc. It is everywhere in our space environment.