An elementary-level physics approach is used to calculate a number of interesting and useful quantities related to nuclear explosions. The set of eight exercises deals with nuclear fission fragments, the variation of fissile nucleus density in a fissioning nuclear device core with time, and the fireball.

In Brazil, environmental topics in teacher education programmes have largely been addressed and explored by the field of research in Environmental Education and subsidized by legislative and normative instruments. Nevertheless, the difficulties in articulating environmental topics within some areas of knowledge compromise their integration in…