KEVA CONTRAPTIONS CATAPULT
Engage in the times of medieval weaponry on a miniature scale. This kit includes pre-drilled planks, wood glue, leather strap, ruler, rubber bands, cup, 2 balls, target mat, fasteners and instructions to build your own replica of a catapult. Then, let the experimentations begin! What shoots farther, a marshmallow or a piece of macaroni? When you raise the catapult, how does it affect the hurl? How far back do you need to place the catapult to knock over the wall of blocks?