In Science, we have been looking at forces acting on everyday objects. These include gravity and resistance. We talked about moving objects having ‘unbalanced’ forces acting on them while motionless objects have ‘balanced’ forces acting on them. We also drew our own scientific diagrams to demonstrate this. We discussed the findings of famous scientists such as Galileo and Isaac Newton – who discovered gravity – and watched interesting film clips, showing how without air resistance two objects – a bowling ball and feathers – will fall at the same rate. Fascinating!
Armed with all this information, we set out to investigate our own scientific questions to do with paper helicopters e.g. Does the shape of the propeller affect the speed it falls? Does the number of paperclips (weighing it down) affect the speed it falls? We made the paper helicopters and, as a group, worked out how to test them, as fairly as possible, and then how to record the results so hopefully they would make sense to others. We also wrote conclusions to show what we had found out. Some investigations were more conclusive than others.
Our classrooms were a-buzz with activity with paper helicopters flying through the air and scientific discussion (including the odd argument) going on at every stage. Throughout the activity we also tried to develop our teamwork skills. Judging by the standard of some of the helicopters that were produced, there are definitely some budding engineers amongst us in year 5!