Diving Sub
this item is brand new in the package. a classic toy from the 1950's. watch in amazement as it dives and resurfaces again and again, powered by ordinary baking powder. submarine is 4.5" long.
How It Works:
The Submarine is denser than the water and sinks to the bottom.
As the water reacts with the baking powder, harmless carbon dioxide gas is formed and creates bubbles, making the submarine rise to the surface.
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