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Catapult....kids will love this!!
Simple Machines Unit with a diy catapult
Pocket Sized Minty Catapult Webelo engineering
how to make a catapult
Lever and Screw Simple Machines Lesson
This is part 2 of a 6 part hands-on unit on inventions and simple machines. Build and test catapults, lift an adult using a lever, test out screws...
Clothespin Catapult for Kids