What are bones made of ?

                     BONES ARE MADE OF CELLS AND LIVING PARTS OF YOUR BODY.  PLUS THEY ARE ALSO MADE OF STRONG STRING MATERIAL CALLED COLLAGEN.  BONES ARE STORAGE PLACE FOR MINERALS.  BONES HAVE A JELLY LIKE RED AND YELLOW MARROW.  YELLOW BONE MARROW STORES FAT AND SUGAR.  THE OUTER LAYER IS CALLED HARD BONE AND THE SPONGY BONE IS A HONEYCOMB OF BONE CELLS WITH SPACES BETWEEN THEM.        

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