Ep 5. Cold

In season 4 of Xploration DIY SCI, episode 5 titled "Cold", viewers can expect to be taken on a journey of icy discoveries and creations. The episode focuses on the science and experimentation behind the coldest substance on earth- liquid nitrogen.

Hosts Leanne and Steve begin by showing viewers how to make ice cream in minutes using this ultra-cool substance. They explain the science behind this phenomenon and demonstrate just how easy it is to create something delicious using a bit of liquid nitrogen. They also show how to make a bottle rocket using liquid nitrogen and a plastic bottle. The rocket shoots up into the sky due to the quick expansion of gas from the liquid nitrogen.

Viewers will then be taken to a place where liquid nitrogen is used extensively, a scientific research lab. Leanne meets up with a scientist who shows her some unique experiments that can only be done with this substance. One such experiment involves suspending a flower in liquid nitrogen, which makes it incredibly brittle. The scientist then shows how it can be shattered into pieces using a hammer. Leanne also takes part in an experiment in which she dips a balloon in liquid nitrogen. The balloon shrinks due to the change in temperature and then quickly expands back to its original size once removed from the substance.

The episode then highlights how liquid nitrogen is being used in more practical ways, such as cryopreservation. Leanne talks with a veterinarian who explains how they use liquid nitrogen to freeze samples of animal tissue and sperm. This freezing process preserves the samples and keeps them viable for future use.

Finally, Steve and Leanne take on a liquid nitrogen challenge where they pit their wits and creativity against one another. Their task is to create something using only liquid nitrogen and everyday materials. They both take a different approach, with Steve creating a frozen flower and Leanne creating an ice sculpture. The results are stunning, proving just how cool liquid nitrogen can be.

Overall, "Cold" is a fascinating episode of Xploration DIY SCI that showcases the incredible power and potential of liquid nitrogen. With its many uses and applications, it's clear that this substance is at the forefront of scientific experimentation and discovery.