The force that comes from this giant magnet is called magnetism. The Earth's huge magnetic field is believed to be created by extremely hot molten iron deep within the centre of the Earth. As the Earth spins, this hot molten iron also spins and creates electrical currents. These electrical currents cause Earth to act like there's a giant invisible bar magnet in its centre with its own magnetic north and south poles. All materials are made up of tiny particles called atoms.
Some materials are magnetic because of the way their atoms pack together.
When clusters of atoms arrange themselves, the atoms are attracted to different areas of the earth's magnetic field. One side of the cluster is attracted to the Earth's magnetic north pole, and the other side is attracted to the Earth's magnetic south pole. These clusters are called domains. A bar magnet, a sheet of paper, scissors, sticky tape, a paper clip, some cotton thread. Trace or draw the snake pattern onto a piece of paper.