After Solid, liquid and gas there is one more matter that exists known as Plasma. Properties of Plasma are

☛ Plasma has neither a definite shape nor a definite volume

☛ Plasma often seen in ionized gases, and heating produces it and ionizing a gas

☛ Free electrical charges which are not bound to atoms or ions can cause plasma to be electrically conductive

☛ Some of the examples of plasma are lightning, stars, inside fluorescent lights and neon signs