Today the children had to help Ernie the electrician out. He had received a complaint from one of his customers about the brightness of the lamp he had recently fixed. The children had to decide what sort of metal he had used as a conductor and whether there is a better one which would make the bulb brighter. We found that there were two good conductors and chose copper as the best one due to the cost of this compared to gold. Take a look at the pictures below.