Mini-Ballista Build: Half day, single session class. The price of the class includes a Mini-Ballista with an $80 retail value. Find mini-Ballista image and information at this link: http://newtonsattic.org/wp-content/uploads/2015/12/Mini-Ballista-Sales-sm.jpg Siege-ho! You’ve seen them on the Discovery Channel at the Pumpkin Chunkin’ festival. Now it’s time for you to build your own mini-ballista. Working from a kit of parts, students will assemble their own table top sized ballista that is capable of shooting over 100 feet. Students will use hand tools and safe power tools during the construction process. Students will also build targets and cardboard castles that will be used during the filed testing of their mini-ballistas. Concepts covered: mechanical design, energy storage, projectile motion, aerodynamics. Students will keep the ballistas they make.