Balloon Thrust Investigation

In extension we were given a task too experiment different ways too tie a balloon to a string with a straw. The air coming out of the balloon would make it go across the string. We had too find a way which will make the balloon reach the other side of the string the fastest. All groups had to make three experiments and try them out.
Our first experiment had two tapes and we used a big balloon.

 This is our second balloon experiment. In this experiment we used two tapes like our first one but, with a smaller balloon.

This is my third experiment, and I chose too use only one tape on this one.These are our groups balloon investigations.