Year 3 had great fun, testing out which magnet was the strongest by attaching paper clips. They planned and carried out a fair test investigation using a variety of magnets; big and small. The smallest horseshoe magnet held 61 large paper clips!!! They were surprised that the bigger magnet only held 21! We also created our our own race tracks to race metal cars around, moved by magnets. We timed how long it took each other to complete the circuit.