We have been making skeletons in science this week.
Why don't you ask your mum or dad to measure you at home and then measure you again at the end of Year 4 - I wonder by how much you will have grown?
All the bones in the human body together are called the skeleton. The skeleton provides strength and rigidity to our body so we don't just flop around like jellyfish. We have 206 bones in our body. Each bone has a function. Some bones offer protection to softer more fragile parts of body. For example, the skull protects the brain and the rib cage protects our heart and lungs. Other bones, like bones in our legs and arms, help us to move around by providing support for our muscles.
Interesting bone facts –
The smallest bone found in the human body is located in the middlear. The staple, (or stirrup) bone is only 2.8 millimetres long
The smallest bones are in the ear.
Although your bones stop growing when you are around 20, they do constantly rebuild new bone cells.
The spine is made up of 33 bones.
Red bone marrow can produce around 5 billion red blood cells each day.
Very few man made substances can come close to the lightness and strength of bones.
If your body doesn't have enough calcium, it will take it from your bones making your bones weaker. A good reason to drink your milk!
Check out the BBC bitesize link below
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