<filename>data/manualdocs/38_elementary.json
{"Name":"Bone Cells Lesson for Kids","Subject":"['health and fitness', 'arthritis', 'disease', 'thyroid disease']","Level":"Elementary School","Description":"Your bones may look boring, but they are active, living body parts that are constantly being built up and broken down. Read on to learn about the three main types of bone cells: osteoclasts, osteoblasts, and osteocytes.","Concepts":"['Bone', 'Osteoblast', 'Osteoclast', 'Osteocyte', 'Skeletal system', 'English-language films', 'Bone marrow']","URL":"https://study.com/academy/lesson/bone-cells-lesson-for-kids.html"}