Making bones soft like rubber
Here is an interesting science project that may make you want to drink your milk to strengthen those bones. Milk has calcium which makes bones strong. Calcium is the lightest of alkaline metals having a density of only 1.55 g/cm. It is the fifth most abundant metal in the human body, as it is a part of the structure of your bones.
So is calcium really all that important to your bones? What would happen if the calcium was leached away from the bones and your body? Let us use this simulated bone experiment to find out. You will need to use some chicken bones. Use the leg bone or drumstick as it is amongst the stronger bones in the bird.
Was your chicken bones and dry them off. This is just to make sure that you get all the meat off the bones. Flex the bones to see if they bend easily or break. Now get a large jar which has a good fitting lid. Add the chicken bones Pour some vinegar into the jar. Make sure its enough to cover the bones. Now leave the jar with the bones and the vinegar in a place where they will not be disturbed for about 5 days.
Then open the jar and drain out the vinegar. Take a look at the bones. The mild acid of the vinegar has broken down the calcium in the bones. Now that the bones have been leached of the calcium they are no longer strong. They are in fact as soft as rubber and just as flexible. So the next time your mother asks you to drink your milk, remember this science experiment and down that glass.