Jesus gave to John the visions described in the book of Revelation that we might know what will soon come to pass. The book of Revelation will be fullfilled exactly as it has been penned.
I will have to take a look, but I dont recall anything pertaining to water on fire. it is written that a third of the waters of the world will become blood.
It is important when quoting scriptures to devulge of what version of bible you are referencing. there are some you should steer clear of. I generally refer to KJ, NKJ and NIV