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 One Strong Magnet Called the Death Magnet Microwave Plasma Balls Experiment Make Some Warm Water With Extra Hot Nickel Anti-Gravity Wheel? Cool Gyro Demonstration Impressive Liquid Repellent Tests Alkali Metals Reacting with Water