Catapults & Crossbows

It’s time to get medieval on physics! Build ten sleek and updated models of catapults and crossbows. These classic siege weapons from the middle ages also happen to be great tools for teaching physics, including lessons in force, energy, motion, and projectiles.

Contains: 111 pieces for 10 different experiments, and full-color, step-by-step instructions.

Dimensions: 10 x 11 x 2.5 inches.

Ages: 8+.