states of matter

It is a branch of science that deals with the composition of matter and also the physical and chemical characteristics associated with the different material objects.
"A French chemist, Lavoisier is regarded as father of modern chemistry."

Anything that occupies in space , possesses mass is called matter.

Solid state:-A solid possesses definite shape and definite volume i.e. it can not be compressed on applying pressure . Ex. Wood, metals, bricks etc.

Liquid State:- A liquid possesses definite volume but no definite shape. i.e. the liquid can take up the shape of container in which it is placed. Ex. Milk , water , oil etc.

Gaseous State:- A gas does not have either a definite shape. i.e. it can be compressed to large extent on applying pressure and also takes the shape of container in which it is placed. Ex. Air, nitrogen, oxygen etc.