Balloon Powered Car

I really enjoyed this interesting challenge. When my group and I started this challenge we had no clue on how we were going to build a car. As the challenge went on and the time went by, we finally came up with an idea. We constructed the car in under 10 minutes, but we had a problem, we didnt know how to attach the balloon to the string. Just as we needed it Mrs. Mathieu came to the rescue and gave us a straw. When it was our turn we poked a hole in the balloon and sadly the balloon did not go a single centimeter up the string. Even though our project was a failure, I really had fun building it.