magnets

In the last two lessons, we have been learning about magnets and what they do. We learnt that the north and south pole on a magnet point to the north and south pole on the planet. Magnets have an invisible line of force. Using iron filings, you can see these lines. The core of the earth is one big magnet and the biggest magnet on earth is the earth. You need to be careful around credit cards if you have a magnet.