There are always gaps in a scientific theory. There are gaps in Germ Theory as well, but you don't see a serious effort to bring a God-based replacement for Germ Theory into the classroom.
Yet it's taught as science. Why?
Because it is a testable, disproveable theory that best explains the process of speciation and has withstood the test of time. Almost every serious biologist in the world, the Catholic Church, and the best minds of our time accept Evolution as the most likely way that life on Earth developed from simpler to more complex forms.
Which I agree with fully.
My biggest contention, I guess, is the origin of the 'spark' of life. What started it all?
For thousands of years, people across the globe credited the existence of the world to a higher being (or beings).
Barely 150 years ago, Darwin started his theory of evolution and the argument began between the evolution / ID factions.
Scientific theory is supposed to become fact once proven....but 'proven' to who? How much evidence is enough? Who gets to decide?
Why can't it be accepted that something we cannot identify started *life*, then evolution took over from there?
Why can't school teach just the study of organisms without expounding on either theory to the originating *spark*?