Jerje T.: Conductive plastic – an interesting material for a science project, Fair 19, Cheb 2014Probably every physics teacher knows how hard it is to get a new teaching aid or demonstration set to his physics cabinet. The teacher, who teaches students physics and really means it, then has no choice but to start making aids on his own, look around and gain the sense that not all things have to be thrown away. In this contribution I would like to show, or sometimes just remind, with which experiments teacher can enrich his or her lesson.