Catapults & Crossbows Science brush and twenty (20) stickers

brush and twenty (20) stickers used for collecting finger prints

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Designed for ages eight and up

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it is your job to design this booming municipality

Catapults & Crossbows Science brush and twenty (20) stickersIts 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. A crossbow is a medieval type of weapon based on a bow and arrow, in which the bow is mounted horizontally on a stock. Build and experiment with five different types of crossbows. The