A plastic bottle rocket launched into the sky in a science experiment that wowed a science teacher's class in Gosford, Australia.

To make the rocket, science teacher Jacob Strickling poured liquid nitrogen into the half-filled bottle of Diet Coke, and when turned upside down forced the Diet Coke out of the nozzle of the rocket.

This footage was taken on May 22.

Australian Science Teacher, Jacob Strickling, partially fills a plastic bottle rocket with diet coke and then pours in some liquid nitrogen to spectacular launch a bottle rocket.
When the rocket is inverted (tipped upside down) the liquid nitrogen turns to a gas and the expanding pressure forces the diet coke out the nozzle of the rocket. Due to Newton's third law, the coke which is pushed down, forces the rocket upwards and causes it to take off.