CMS Magnetics Magnetic Ferrofluid for Fun 2 OZ. Packed with Gloves Petri Dish and Dropper

This set of science kit includes 2 oz educational ferrofluid, one petri dish, a plastic dropper and a pair of gloves. Together with your magnet, it can show the magnetic field via the magnetic liquid - ferrofluid. The following is the list of the items included, One petri dish, in the dimensions of 100mm x 15mm or 50mm x 9.5mm 2 ounce bottle of ferrofluid A pair of rubber gloves A plastic dropper This item is great for teaching kids about magnetism and has a lot of fun! What is Ferrofluid? In short, it is a liquid that responds to magnets and magnetic fields. The longer answer is ferrofluid is an extremely fine powder, coated with a soap-like material called a surfactant, suspended in a mineral oil liquid base. The resulting magnetic suspension is called a ferrofluid. When no magnetic field is present, ferrofluid behaves and flows like a normal liquid. However, when a magnet or magnetic field is introduced, the ferrofluid is attracted to the field. Spikes then form along the magnetic field lines when the magnetic surface force exceeds the stabilizing effects of fluid weight and surface tension. Note: The ferrofluid leaves permanent stains to fabric, pvc counter and furniture. the ferrofluid will also be attracted to magnets when close to it. Please operate carefully to avoid spills.