The rube gold berg moved from station to station mainly by the forces of motion because from the first step to the second step was a pulley hitting dominoes, then from our second step to our third step by having the dominoes hit a metal block then it fell into a cup and dumped a marble into a PVC pipe. Then for the next steps transferred by the marble hitting a see-saw and on the other side of the see-saw is a cookie which gets knocked into a glass of milk. The simple machines that my group used are two pulleys, a first class lever, and third class levers.