MAGNETISM Experiment with iron filings to see the magnetic field . Experiment with iron filings in water and a magnet . How do we represent magnetic fields ? What happens when two magnets attract or repel each other? The Earth's magnetic field - The magnetosphere As you can see in the picture, the North Pole (geographical) is actually the South Pole of the Earth's magnetosphere. ELECTRICITY Everything in nature is made of atoms , which contains particles called protons and electrons . Protons have got a positive electric charge, and electrons have got a negative electric charge. When electrons move from the orbit of one atom to the orbit of another atom, electric current is produced. We can classify materials by how easily they carry or conduct the electric current Conductors are materials that conduct electric currents quite easily (cooper, aluminium, silver...