Our Metal Detectors

Following on from our electricity experiments, we used the knowledge that we learned about circuits to build our own metal detectors.  We created a circuit with a button cell battery,  3 wires and a LED bulb.  Once we buillt our circuit we put it inside a plasticine alien we made.  We added foil for hands and tested it.  If we touched anything metal the aliens nose lit up.  We had a few problems along the way with the connections staying together but we got there in the end.