The Rainbow Spinner


On the 6th of November we came into school and the boys went to a match. Sir said we were going to do an experiment on the rainbow spinner. He gave us a piece of cardboard each. We used our compass to draw a circle 5cm radius. We were put into groups of two. The two groups in sixth class were Mallaidh and Julie and Bridgette and Claire. Sir gave us two wires, a battery and a motor. We had to make a circuit so we joined the two wires onto each side of the motor and the battery on the other sides of the wires. That made the motor move. We then put the rainbow spinner on top of the motor and it spun around. The colour we saw was white because white light is the seven colours of the spectrum. What we were trying to prove here is that the seven colours of the spectrum made white light. Nobody knew if this fact was true so we experimented on it. It seemed that it is true. Every one was amazed. Now they knew what was going on and they understood that the seven colours of the spectrum make white light.
Written By Bridgette and Claire