How do magnets stick to the refrigerator?

Refrigerator magnets stick to the refrigerator due to a phenomenon known as magnetic attraction. Magnets have north and south poles, and opposite poles attract each other, while like poles repel. The surface of the refrigerator is made of steel, which is ferromagnetic, meaning it is a type of metal that is strongly attracted to magnets. When a magnet is brought close to the steel surface of the refrigerator, the magnetic field of the magnet induces a magnetic field in the steel. The steel then becomes magnetized and creates an opposite pole to that of the magnet. This creates an attractive force between the magnet and the steel, causing the magnet to stick to the refrigerator.