How come everything science comes up with something, christians say "god gave him that knowledge"?

We say it because it's true. Granted, the scientists have tried for years, through trial and error, to find out things, but if God didn't give them the knowledge to know "how to proceed" through their experiments, etc. they wouldn't find out what they find out. It doesn't mean Christians don't believe in scientists or science, it means we are giving credit where credit is due (to God). Without Him we would be nothing...or close to it.