Catapult design plansCatapult design plansCatapult Project This Catapult is called "The Goblin " It has some design improvements and is very powerful. clear plan is the best way to ensure any event is a smooth running success. It is an easy to make catapult that is powered by rubber bands and has a . The Problem and Challenge: Design a catapult that will throw a marshmellow the greatest . . . . . Following A Plan; Project Plan: Research (Day 1): The students should spend . . Build a Catapult -... more