Liquid Nitrogen Bottle Rockets Liquid nitrogen floats on top of the warm water, expanding thus propelling the soda bottle upwards with extreme force. Facebook Prev Article Next Article Experiments Checkout these cool gadgets... Related Posts World’s Simplest Electric Train A Weird New Supercooled Material Crystallizes and Glows When Touched Watch NASA Fire Up A Vintage F-1 Engine Watching Surface Tension on Droplets is Amazing Can You Absorb Mercury with a Sponge? Beautiful Chemical Reactions