At birth everyone has 350 bones, but adults have 206. Use resources at home and in your library to find out how bones develop and change as people grow. Write a paragraph explaining this change.
baby's skeleton is mostly made up of cartilage. As a person grows up, most of this cartilage turns into bone in a process called ossification. Ossification is the the process of creating bone, that is of transforming cartilage (or fibrous tissue) into bone. As the child grows, these soft areas ossify into actual bone. The knee cap, for example, begins to ossify between ages 3 and 6.
