Two Methods for Supercooling Water

You can cool water below its stated freezing point and then crystallize it into ice instantly. This is known as supercooling.

Instant Freeze Super-Cooled Water - Cool Science

How to Supercool Water: 11 Steps (with Pictures) - wikiHow

Red Line 80205, Supercool Extreme Powersports Coolant, Safe for Track, Street, Off-Roa - 1/2 Gallon (64 Ounces) : Automotive

Supercool experiment reveals water is actually two liquids in one

How to Supercool Water: 11 Steps (with Pictures) - wikiHow

Supercooling - Wikipedia

a) Density of cold and supercooled water as a function of temperature

The Freaky Physics of Supercooled Water

How to Supercool Water: 11 Steps (with Pictures) - wikiHow