MAGNETS: (science entry).

In science class this year we studied a lot of things, but the thing that interested me the most was the subject of magnets. A magnet is an object that has a magnetic field. It can be in the form of a permanent magnet or an electromagnet. Permanent magnets generate their field by themselves. They can occur naturally in some rocks, but hey can also be made by humans. Electromagnets instead generate their own electric charge, and as it increases, so does the magnetic field. Magnets are attracted or repelled by other materials. A material which is strongly attracted to a has a high permeability, like for example iron and steeel, and an example of low permeability is liquid oxygen. Everything has a permeability!!.