When talking about the Spanish curricula of the CMC, do we all Autonomous Communities talk about the same matter?

In the present paper we aim at comparing the Spanish curricula of the subject CMC -“Ciencias para el Mundo Contemporáneo” (Science for Contemporary World) of High School. We have revised the documents of the different Autonomous Communities (different regions) concerning the function of subject matter, methodological orientation, evaluation criteria, and developmment of competence. We have found differences suggesting that at the curriculum level we do not always talk about the same matter.