Scout is definitely dealing with some internal conflict in the novel, "To Kill a Mockingbird".
I think that from my own perspective Scout is very mature for her age in this book and understands and realizes things in her society that most adults do not catch or understand. I think that is one internal conflict. The other would be Scout vs. Society, and what that means is Scout knows that what her town is doing and the way society is at that point in time is wrong. She understands that racism and the other issues are not right and she is overthrowing society's expectations with her own.