Propulsion Exercise Reflection - Welon

It was fun trying to propel the ping pong ball. With the materials given, we could not find out how to propel the ping pong ball initially. We thought it was the lack of force from the balloon because for some reason the cone shape that we thought would work theoretically did not, instead the reverse cone shape worked. We still have a lot to learn about how air moves. Most of the methods we tried were trial and error until one finally succeeded. We ended up cutting the paper several times as well due to crumpling the 'mouth'.