Making Paper Helicopters

Yesterday, Room 2 did some science work about how to make a paper helicopter spin around. First, we had to cut out the model and fold it. We stood out on the bench to try it out. The first one flew well, but the second one flew better and smoother. The last experiment was putting 3 paper clips  and cutting one of the helicopter blades.  It flew better then the other one and also faster.   It also spins better as well.