Catipults & Crossbows
665107
$24.99 $27.99
Build ten sleek working models of catapults, crossbows and trebuchets
Learn physics lessons in force, energy, motion, and projectiles. Build and experiment with five different types of crossbows, (The projectile has a safe foam tip)
INCLUDED: 32 page full color manual, 10 experiments
AGE: 8+
