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Electicity and Magnetism Review
Magnetism is the attraction between magnets and other objects. Magnets have north and south poles and magnetic fields around them. Opposite poles attract while similar poles repel. In magnetic materials, magnetic domains contain clusters of atoms with aligned magnetic fields. Magnets can be ruined if heated or dropped, breaking them into smaller magnets. The Earth acts as a giant magnet with magnetic poles and fields, influencing compasses to point north.
