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MagnetsMagnets are super cool! They are objects that produce a magnetic field, which in turn can do some neat 'invisible force' actions such as attract iron fillings, paper clips, and attract or repel other magnets. Only so-called ferromagnetic materials can be made into a permanent magnet. Some of the examples of these materials are: iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone. One can also create a magnetic field with an electro-magnet, which is typically a solenoid (a wire wound up in a cylinder shape) with an iron core, by passing electricity through it. Magnets and electromagnets are perfect for science fair projects, classrooms and school labs! As far as the permanent magnets go, look for four different kinds/materials that we sell (each come in various shapes such as: bar, horseshoe, disc, sphere, cube, etc.) These materials are: ceramic, iron, AlNiCo and Neodymium. Ceramic magnets are the weakest (and cheapest) and Neodymium ones are the strongest (and most expensive). For example, a typical ceramic bar magnet can lift only several paper clips, while a Neodymium bar magnet can lift a few pounds (a kilogram) of iron! Here are some cool science experiments you can do with magnets: testing what is attracted to magnets, visualizing magnetic fields, comparing magnet strengths, blocking magnetic fields, experiments with electro-magnets, and much more. The best way to start is to buy an assortment of various magnet shapes and materials, iron fillings, iron shapes, some lodestones, and a few compasses and to start experimenting. Alternatively, you can buy some of our cool magnet science kits. Shop by Product Category: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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