In what ways are materials different from each other ? Is there any similarity between these materials ?

All materials are made up of atoms or combination of same or different atoms. Different atoms are different in terms of atomic number, atomic mass, density, physical state and etc hence materials will also be different. Also Color, texture, use , size etc may be different.

Yes there is similarity between materials the similarity is they all are made up of matter and they all have a state like liquid, gas or solid. Also they all occupy space and have mass.