Mass is the product of density and volume (m = D x V) while density is ratio of mass per volume (D = m / V). Summary: 1.Mass is how much matter is present in a particular object. 2.Density is how much mass is present per unit of volume.
asâ¢sert /ÉËsÉrt/USA pronunciation v. [~ + object] 1  to state strongly or positively; declare strongly:asserted his innocence.[~ + (that) clause]asserted that he was innocent of the crime. 2  to make a claim to:Minorities are now asserting their right to be heard.
In rhetoric and argumentation, a claim is an arguable statementâan idea that a rhetor (that is, a speaker or writer) asks an audience to accept. Also called an arguable statement. Claims of fact assert that something is true or not true. Claims of value assert that something is good or bad, more or less desirable.