We started off small and slowly scaled up from a 16.9oz bottle to a 5 gallon bottle. The experiment works like this. You add some LN2 to a bottle filled with water, when you flip it over the LN2 rises to the top of the bottle (the actual bottom of the bottle) it then expands rapidly pushing out the remaining water thus creating jet propulsion! When we scale up to the 5 gallon container the sound it makes is incredible! Loved doing this experiment with the TKOT crew! (Nate and Calli) — — — — — — #science #sciences #scienceart #sciencefacts #edu #educational #education #stem #steam #chemistry #chem #chemicals #video #videos #experiment #experiments #nickuhas #liquidnitrogen #ln2 #rocket #rockets #bottlerockets