REPLY: It was a nifty video, but those were not balls of water. They may or may not of been some form of hydrates. If you melt those balls and they have the usual properties of water I would consider you had found some method of producing WATER MARBLES. That is not what I saw. It is a very interesting experiment. I suggest you analyze just what those WATER MARBLES are. It was an impressive demonstration. ...traveler
I suspect fakery. Clear glass or plastic marbles are essentially invisible in water, and the video maker was clearly not a chemistry buff. But, I'll withhold judgement unless I find time to try it or work out the chemistry myself.