Photo credit: Mike Walker / PopSci

For those who have taken basic science courses at school, liquid nitrogen is something that many students have experimented with. Now, we’ve rounded up seven of the weirdest experiments that you’ve probably never tried before. In technical terms, “at atmospheric pressure, liquid nitrogen boils at 77K (-196C; -321F) and is a cryogenic fluid which can cause rapid freezing on contact with living tissue, which may lead to frostbite.” Continue reading to see them all.

7. Liquid Nitrogen Cooking

6. Burning Thermite Meets Liquid Nitrogen

5. PC Cooling

4. Sculpting Solid Mercury with Liquid Nitrogen

3. Gummy Bear

2. Hand Versus Liquid Nitrogen

1. Liquid Nitrogen Swimming Pool

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