Oh, my... about 1 1/2 yrs. ago, I think I wrote nearly the same question!! All my kids were brought home from the same hospital to the same house and lived there their entire lives. My girls were about the same age as yours are and I had a Kindergarten to boot! Talk about disturbing the balance of life!!
My best advice is to be patient and open to her. Try your best to not force the good things about the move. I mean, don't be sooo much into the, "Oh, the malls are so big there", or "The parks are beautiful!" or "You are going to looove the new school!" I mean, it's fine to talk about where you're moving, but don't try to over-sell it. It will make her resent the move even more and possibly you. I know this from experience.
As I said before, be open. She's going to be emotional and angry and sad. Eventually, this will subside, and she'll hopefully want to talk with you. Be sure she's able to Skype and call her friends. If she's on social media, let her be in contact. That was a life-saver for us! Kids actually have it much better than we did when moved, don't they?
Last Summer we allowed my oldest daughter's friend to come out here for nearly a month, and then we let both girls go there to stay with different friends for a week. They were amazed at how the town was so different from how they remembered it! They came back home with a new found appreciation and they actually like living here more than their hometown.
They are still in constant contact with most of their friends and we are planning on them going back again this coming Summer for a short vacation with friends. :)
Good luck, and things will settle, I promise.
L.