Bone and muscles

8 años: Sociología Biología
9 años: Biología Sociología

“Bones & Muscle” program of Bill Nye the Science Guy series. It is a good resource to introduce the characteristics or the motor system and answer questions like these: how many bones are ther in the body?; what holds bones together?; what holds muscles to bones?; what moves your bones? etc. Duration: 20 minutes