Ferrofluid Looks Like Venom #Chemistry Ferrofluid is a unique liquid that contains nanoscale ferromagnetic particles suspended in a carrier fluid. These particles are typically made from iron, nickel, or cobalt, and are coated with a surfactant to prevent clumping. When exposed to a magnetic field, ferrofluid becomes highly magnetized, causing it to form intricate patterns and shapes as the particles align along the magnetic field lines. This intriguing behavior makes ferrofluid useful in variou