Radioactivity

This can be a fascinating area for students. Over the age of 16, they can work with certain radioactive sources, provided they are carefully supervised. One of your tasks as a teacher is to show them how to work safely, and to convince them that it is indeed safe to do so. You can do this by thinking first about the level of background radiation that we all live with, and showing how to ensure that exposure during experimental work does not add significantly to this lifelong exposure.

Radiation hazard symbol