Multi-coloured plastic-coated iron chips are not only easy to handle and clean up, but also heaps of fun! This alternative to iron filings puts some colour and excitement into the exploration of 3-dimensional magnetic fields. By connecting magnets in a variety of shapes, students can see dynamic changes within the magnetic field lines. Place a strong magnet under a sheet of white cardboard and sprinkle these on for an amazing effect. You will likely want several packs of these!
