Science Projects And Inventions

YOU NEED:

• One magnet
• One iron bar

You are handed over two identical iron bars A and B. You are told that one of the two is a magnet. You will not be allowed to touch any >f the bars to metal to verify, but you will have to tell  which is the magnet.

HOW DOES IT WORK?

Put the end of bar A to the middle of bar B. If there is a pull effect, A has to be the magnet or else it has to be B.