We used the process of design to create and construct our catapult. Brainstorming was the first thing we did, followed by sketching designs of how we wanted the catapult to look.Our design is sturdy, consistent, safe, and cost efficient. Most importantly, it can be mass-produced. We feel that we achieved the goal we set out to accomplish. Then we examined the concepts of Kinetic Energy, Potential Energy, and transfer of energy, as well as cause and effect.