Collect data from your friends, neighbours and classmates to know more about milk teeth.

Tabulate your data. One way of doing it is given below:

S. No.	Age at which first tooth fell	Age at which last tooth fell	No. of teeth lost	No. of teeth replaced
1.
2.
3.
4.
5.

Find out from at least twenty children and find the average age at which children lose the milk teeth. You may take help of your friends.