No other materials are attracted to magnets i.e. wood, plastic,
glass and everything else are not attracted to magnets.
Not all metals are attracted to magnets - iron and steel are
attracted to magnets whereas aluminium, copper and brass are not
attracted to magnets.
Some magnets are stronger than others. If one magnet hold
more paper clips than another magnet then it is a stronger magnet.
A magnet can pick up some objects like paper clips without even
touching them…an
invisible force. This invisible
force can pull through some materials such as paper and plastic.
Remember that only metals are magnetic, but not all metals are
magnetic.