Interesting explanation about the universe. I will limit to answer your question and state my viewpoint:
"Atoms join one way or another, acording to science, yet water joins both ways???
Plus water is 2 gases, why would 2 gases form to make a liquid?"
You probably meant 2 hydrogen atoms bound by 1 oxygen atom makes up a molecule of water. Different configurations can occur which are not random but predestined. As far as gases turning into liquids: "At a sufficiently high pressure, however, the gas becomes liquid." For a more detailed explanation:
http://nobelprize.org/physics/laureates/1910/press.html liquids and gases are just states of matter. " Matter is not created neither destroyed, it only changes." So, water changes into gases just as the water cycle pinpoints.
Science deals with matter. All questions related with matter must be explained through science; otherwise it is just mere belief. It is scientific to say that the universe couldn't be created. why? because matter cannot be created neither destroyed...atoms cannot be created neither destroyed.
It is important to understnad this point before moving on...So this means that God didn't create the universe? Yes. God is a Soul. Souls are eternal. This material world has always existed just like God and just like you and me.
Sorry to bring these news especially since they may be against the teaching of religious "holy books", etc. which were written by human beings whith the knowledge they had 2500 years ago.
Then this means that the "big bang" created everything ? NO.
Because matter is not created neither destroyed. Besides, the laws of causality and the 3 aspects of time are not followed logically when you think about a beginning. This is reasonable. This is logical. This is scientific.
Science cannot understand spiritual, subtle matters because those are not in the realm of matter. For instance, science cannot tell you how to stop your thoughts, or what are the thoughts? Science cannot understnad God because this is an experience, a different consciousness is required to perceive the subtlety of this. Normal everyday people engrossed in body consciousness cannot perceive this. Thoughts and feelings are not in the realm of science. Psychology does a lame job trying to understand this in a "scientific way."
Therefore; there is NO origin in the universe. It has always existed.. and always will. WHY? Because matter cannot be created neither destroyed... it can only be transformed.. and this is exactly what have been going on in the universe for centuries. The first LAW of thermodynamics also known as the LAW of conservation of energy/ matter, affects everyone.