Hydraulic Arm. I chose this project because it taught me how to work well together with others, and how to achieve our goal. This project was also great way for me to get to know my peers. We all did our part, research, problem solving, connecting parts together, talking to each other, and other effective ways to get the project done. Our Hydraulic Arm is made mainly out of cardboard and other recycled materials including, plastic bottles, bottle caps, cans, and popsicle sticks.