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Balloon Propeller (Newtons Third Law) Sir Isaac Newton's Third Law of motion says that for every action, there is an equal and opposite reaction. Using everyday materials, your kids can see this concept come to life!

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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 of various threads, and more!

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