What happens when you throw liquid nitrogen and dry ice in a pool?

Sadly, liquid nitrogen, dry ice and a large pool are not items we have immediately on hand to find out for ourselves. But luckily for viewers, The Backyard Scientist has gone to the effort for us. In the video below, he throws bottles filled with dry ice and liquid nitrogen into his backyard pool and films the volatile results in beautiful slow-motion.



YouTube/TheBackyardScientist

When carbon dioxide is cooled past -78.3oC (-109oF), it becomes dry ice and freezes into a solid. Warm this solid up and the dry ice sublimates (goes from solid to gas, instead of from solid to liquid to gas). If it sublimates inside a sealed container, the pressure inside will also increase, which can cause the container to burst.

Check out the incredible video from The Backyard Scientist: