"Open museums", as parks and zoos, have an important role in the popularisation of sciences. They, generally, propose activities addressed to a heterogeneous public, constituted of a considerable portion of family groups. The educational activities offered in those museums induce different interactivity levels between the visitors and the exposed objects. Our paper summarizes the observations of four family groups in the butterfly's gate of the Zoo-Botanical Foundation of Belo Horizonte, resulting in data that were examined qualitatively. The results indicate three interactivity levels between the elements of the exhibition and the members of the group.
museums; zoo; interactivity; family groups.