Magneto!

Every time you play and fiddle with that horseshoe magnet in your science class, you probably have questioned; "How does this things work?" Which is what I'm gonna answer within next 5 minutes.

What is a magnet?
A Magnet is an object that contains magnetism.

Magnetism is an attraction or repulsion that acts within an area of effect. This is due to the existence of a magnetic field, which is caused by movements of electrical charged particles.

A magnet is an object that shows a strong magnetic field. It attracts other magnets as well as ferromagnetic minerals like iron or cobalt.

Magnets have 2 "poles", the North and the South poles. The concept of poles should not be taken literally: it is merely a way of referring to the two different ends of a magnet. A magnet does not have distinct north or south particles on opposing sides. If a bar magnet is broken into two pieces, in an attempt to separate the north and south poles, the result will be two bar magnets, each of which has both a north and south pole. Opposite poles attract each other.

If you have nothing to do, here are somethings to have fun with:
- Heat a magnet past its Curie temperature; this will 'erase' all magnetism.
- Heat a piece of ferromagnetic metal, heat it past its Curie temperature, and cool it down near a magnet as you hammer it. This will magnetize the metal.