PIRA: 5H10.31


  • Magnetic field demo cube
  • overhead projector


  1. Shake magnetic field demo cube with magnet removed.
  2. Place on overhead projector and place magnet inside.
  3. Watch the filings align to magnetic field lines.
  4. With the magnet inside the middle hole, tilt mysterious magnet tube back and forth.
  5.  Observe the iron filings