#9thClassChemistry #Is_Matter_Around_Us_Pure #Part1 #RevolutionEducation

In other words, a substance is a pure single form of matter. As we look around, we can see that most of the matter around us exist as mixtures of two or more pure components, for example, sea water, minerals, soil etc. are all mixtures. ... A substance cannot be separated into other kinds of matter by any physical process.