Improvements for Our Next Model

The biggest mistake that we did was using heavy materials like a pencil and a tissue box and building the structure with wheels that were close together. The eraser made the pencil heavier. The eraser on one side did not keep the structure balances and make it very instable. The other small mistakes that we made were: * Using a long straw * Using a heavy body, which means that in our next model, we should cut of the top of the tissue box and give it less weight. * The pencil gives the structure more weight. This means that in our next model, we should use barbecue sticks instead of the two pencils. * The wheels are unstable and move slowly. In our next model, we should separate the distance between the CD’s and the tissue box. *The tape we used for the small cardboard pieces to hold the pencil and the CD together were too tight, which resists the movement of the car. * The hole in the smaller cardboard were two small. Therefore, we need to make the whole larger so that the wheels could move more freely and faster.