Description Use these Iron Filings to observe the shape and size of magnetic fields as they align to these invisible lines of force. Place a magnet (Bar or Horseshoe) under a piece of paper and sprinkle the filings on top to reveal the magnetic field lines. For less mess, sprinkle iron filings into the Petri Dish to perform some fun magic and cool experiments such as a spinning magnetic field using the button magnets! Check out our Magnets Set sold separately. Set includes: High Quality Iron Filings Fine Powder Button Magnet Petri Dish (Filled with red liquid for illustration purpose only) Watch the tutorial here!
