We have a skeleton on the inside of your body. Without the skeleton our body would be as floppy as jelly. There are over 200 bones in our body, bones are very tough and light. They are made from calcium and collagen.
The skeleton does three jobs:
1. To protect our body for example skull protects our brain, ribs protects our organs such as hearts and lungs, backbones protects our spinal nerves.
2. To support our body, it lets us stand upright.
3. To help us move, muscles are joined to the bones it controls the way the bones move.