WOW - that's a lot of blood !!

This week we have been trying to calculate how much blood is inside each and every one of us. We were able to do this by using our maths.

Firstly, we weighed ourselves. Mr Day brought his Wii game station in and we weighed ourselves on the Wii Board. 

Next we used the well known fact that 7% of our body weight is blood and so divided our weight by 100 and multiplied by 7. Simple really.

Emily Murray was the first to try and recreate the quantity of blood in her body by making red dye to represent the exact quantity she calculated. All 2.8 litres of it looked impressive when in containers. It's not everyday you get to see all the blood inside you at once - hopefully not anyway !!