Thames & Kosmos Catapult Engineering

Build functional models of six medieval weapons with this Thames & Kosmos Catapult Engineering science kit. With this 6-in-1 maker kit, build a catapult, reverse-draw crossbow, onager, crossbow, trebuchet or ballista.  Use the classic siege weapons to conduct simple experiments that demonstrate important physics and engineering topics like force, energy, motion and trajectory.  Includes cardboard blocks for target practice, lightweight foam balls and soft darts, plus 32-page, full-color manual.

Ages 8 and up.