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 Compilation of Mercury Experiments 150 mph Rocket Knife Trying Out Battery Powered Welding Can You Stand On Liquid Mercury? Spinning Something in a Vacuum Chamber Will Spin Longer Watch How Uranium Emit Radiation Inside a Cloud Chamber