The life cycle of a star

 

Nebula (birth place): In the Nebula is the star shape is formed. This form uses gasses like Hydrogen and Helium.

Star Formation (size):  This is using Hydrogen in the star that becomes increasingly large.

Supermova (explosion): In the Supernova the star explodes and gas can be recycled, can form in Neutron star or if the star is small, it can go in to the Black hole.