I will first confess to not having read this thread in depth as I don't have time, but given that there are a few of you who are catholic with questioning kids, perhaps (or perhaps not!) Denis Edwards' books on Catholicism and evolution / science may be of interest (only likely useful to parents and older children/teens, it's not light reading). Trying to remember titles I am thinking Jesus and the Cosmos & The God of Evolution, but the best bet is probably looking him up on Amazon.