What is a magnet?
A magnet is an object that produces a magnetic field outside itself. The magnetic field (or force field) is the region of space where iron and other materials are attracted to the magnet. When magnetic objects are in a magnetic field, they experience a force (a push or a pull).
Magnets may be cut from metal, or iron powder may be mixed with plastic. They are magnetized (given a magnetic field) by heating them up and exposing them to a magnetic field as they cool.