These stories were written by elite men at the top of the social hierarchy in China. Why would they take the time and effort to produce stories like this for the instruction of commoners? Why should they care whether commoners understand Filial Piety?

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal