WHAT MAKES MATERIALS MAGNETIC? Magnetism is the result of the
constant movement of charged electrons in atoms. As electrons
swirl around an atom, they create an electrical current, and
whenever electricity moves in a current, a magnetic field is
created. So magnetism is a force between electric currents: two
currents flowing in the same direction attract each other, while
those pulling in opposite directions repel each other. The
reason some materials are magnetic, while others are not, has to
do with how the electrons are arranged. A magnet is an object
made of magnetic materials; naturally occurring magnets are
known as lodestones. Every magnet has at least one north pole
and one south pole. In fact, if you take a bar magnet and break
it into two pieces, each of the smaller pieces will still have a
north and south pole. The Earth itself is a giant magnet with a
north and south pole, which is why a magnetic compass's needle
always points north/south. ABOUT THE TONGUE: The tongue is a
versatile group of muscl