Marshmallow Catapult Challenge | Fun STEM Science Activity for Kids

Build a working catapult from simple materials and test how far marshmallows fly — a brilliant introduction to forces, energy transfer and projectile motion. This kit includes a parent guide, build instructions, a measuring record sheet, and the physics explained in child-friendly language. Children design, build, test and improve their catapult through real engineering iteration. Created by an award-winning science educator trusted by families and 100+ schools.

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