Homemade Baking Powder Powered Submarine Science Toy

https://www.amazon.com/HOMEMADE-WORKING-MODEL-SUBMARINE-POWERED-ebook/dp/B06XSYKYYC With certain hydrodynamic design, this origami science toy can dive, surface, and move forward. This simple homemade submarine is powered by baking powder. More info go to below address: https://play.google.com/store/books/details?id=Zvy8CwAAQBAJ

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