Magnetic slime made with Iron filings. Includes a magnet. You can study magnetic fields or basic attraction. The south pole of each particle attracts the north pole of the next particle. The chains of filings that are created run parallel to the direction of the magnetic field. Magnet colors may vary.
!!This slime has a short lifespan because the water in glue will eventually cause the Iron to rust. The slime will begin to discolor and should be thrown out!!
Caution: magnets can interfere with medical devices. Examples include internal pacemakers, defibrillators and insulin pumps.