This is a power point presentation which can be used link the following topics: Current electricity, electromagnetism, permanent and temporary magnets, effect of impurity atoms in Al Ni Co magnets, magnetic fields, the motor effect and the action of heat on magnets. If you have an old Teltron e/m deflection tube then even better because a demonstration allows students to see the effect of a magnetic, (and if time, electric field), on a stream of electrons.