Heres a great app that most of you have already found but if not the Human Body app (by Tinybop) is amazing for the younger kids to explore the human body and its systems. You can go to the app store and search Human Body to find it.
My name is Jacob Akin and I am engaged to Jennifer Morris (Jenny). I have an identical twin brother named Phillip and an older sister named Sheena. She has two sons (Ahston, and Brendan) and a daughter named Callie).