It was once believed that there were only three states of matter namely solid, liquid and gas (1,2,3). But slowly as the years passed by the fourth state of matter Plasma (4)was discovered. But discoveries never end. read more
Firstly we have the states of matter than most of the items around us are in Solid, Liquid and Gas. First state of matter are solids which is where the atoms are greatly compacted and form their own solid shape and e.g. a book. read more