1) science has provided us with many intelligent theories on the subject on how the universe appears and the origin of life. Yet am I correct in thinking scientists shouldn't think they can " know" everything there is to know about these subjects simply by applying science.
They don't think that. Science is designed specifically to ensure that were someone to claim they did, it could be subjected to objective scrutiny.
B) Am I correct in thinking the " origin of life" can still only be theorized and observed but when it comes to complete understanding even scientists are still only small children?
You mean hypothesized. In science, a theory (like evolution or gravity) is the current best explanation supported by a body of evidence, experiment, observation and testing and it is falsifiable.
With regard to "still only small children", as compared to what? If you can point to someone that does have a complete understanding, then you might have reason to make that comparison.
Well the only answer I can give, is that in the search for answers we need the questions. And Slims questions are always new to me
"What color are a dragon's sock darns" is a question, likely a new one to you, certainly to many people. That doesn't make it a good question. "Why does 3+water = purple" is a question, but not a good one.
All questions are not equal. Questions based on misunderstanding and dishonesty, particularly when the questioner has been corrected multiple times and still persists in the question based on a falsehood. In other words, "Have you stopped beating your wife" is a question, but not a good one.