Science

This quarter we have been doing computer group projects for Science at home. My group is: Sofia A., Stefania and me, and our topic is magnets. Magnetism is the attraction of a magnet for another magnet or ferromagnetic material, for example iron, nickel or cobalt. Each magnet has a magnetic pole, its end, where the magnetic force is stronger. Also, every magnet has a magnetic field, the region around it where the magnetic force is exerted. In poor words, the area in which a magnet attracts or repels another object. The magnetic field is mapped by magnetic field lines, that spread out out from the north pole, curve aroumd the magnet and return to the other pole. Did you know that Earth has an immense magnetic field sorrounding it? The problem is, Earth's magnetic North Pole is not the same as the geographic North, so you have to know the magnetic declination (angle between geographic and magnetic North) of where you are to know exactly where North is.