Yes, the heavens and the earth were created, so what? Doesn't mean that evolution didn't happen after that. Genesis 1 doesn't say anything about gravity or hydrogen bonds or the weak molecular force. Doesn't mean they don't exist. If God created everything then that means everything, including the conditions that led to evolution.
Evolution is about showing how the diversity of life came to be and how creatures got the attributes they have. It says nothing about the creation of the Universe or God. It shows how something works, not why it is. And surely that can be seen as a study of how part of God's creation works? I'm a Christian and also a professional scientist. For me, the study of science is the study of how God put the Universe together. But then I'm about 90 IQ points higher than you, so I can understand stuff.
I know a lot of fundies like being persecuted but that's no excuse to make shit up to persecute yourselves with, that's just fucking twisted.