Artistic ingredients MACBA for Families

What are works of art made of? Are there any materials that can, a priori, be considered artistic while others can't? With materials such as iron, marble, ceramics or oil painting, we would probably reach a consensus very quickly. But would that consensus be so easily achieved in the case of dust? Or chocolate? During the visit to the museum we will analyse the materials used by artists and the way they condition the meaning of the work. At the end we will do a collective creative exercise using an unusual material.