Actually, Scrying is not seeing the future. Here are some of the stuff you said...
Scrying is the ability to perceive the location of a given subject or to project one’s vision to a location by use of divinatory mechanisms. One with this ability may use an orb, a crystal or a reflective surface (sometimes even a computer screen) in order to observe an area or find a designated target.
Water Reading, also called Hydromancy is the ability information about the future, the past or the answer to questions based on water. This may involve reading the patterns, the fluxes, the temperature, the motion or even perhaps literally “listening to” or feeling the water, and getting an empathic message pertaining to the information the user desires.
Crystal Gazing, also called Crystallomancy is the ability to obtain information about the past, the future or the thoughts of others by gazing into a crystal. The crystal is usually a crystal ball, but sometimes it can be a prism, or even a pool or still water.
Those are forms of Divination by the way, I am sure you know what Divination is hopefully.