Check out these websites! The information here will help us for our research project.
http://kidshealth.org/kid/htbw/bones.html
http://kidshealth.org/kid/ill_injure/aches/broken_bones.html
http://kidshealth.org/parent/nutrition_fit/nutrition/calcium.html
http://health.howstuffworks.com/human-body/systems/musculoskeletal/heal-broken-bones.htm
http://www.niams.nih.gov/Health_Info/Bone/Bone_Health/Juvenile/default.asp