TheBackyardScientist is back with a super-high-speed camera, a fish tank, and some molten salt.

Sodium chloride (salt) can become a molten liquid when it’s heated to over 801 degrees celsius (1,474 degrees fahrenheit). If you drop a small shot of that liquid into a tank of cool water, a surprisingly powerful physical reaction occurs.

You can watch the explosive results below. On top of that, check out the full video, complete with TheBackyardScientist’s own explanation of what’s happening, right here.