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If you connect a PET bottle and connect a PET bottle filled with water upwards and connect them to each other, there will be air in the lower PET bottle, but if you shake it a little, an empty space will form in the middle and the air will rise and the water will come down tornado.
#Dr. Biscuit Science Experiment #Tornado Experiment #Mom Mark Science #Science Experiment #Twirl #Swirl #Pet Bottle Experiment #Interesting Science Experiment