Puberty
The reproductive system of a child is not mature and needs to change as a boy or girl develops into an adult, so that the system is fully working. These changes begin between the ages of ten and fifteen. The time when the changes happen is called puberty.
The changes happen because of sex hormones produced by the testes in boys and by the ovaries in girls. Some changes happen in boys and girls, while others just happen in boys or girls.
Here are some changes that happen to both boys and girls:
1) Underarm hair grows.
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The time when the physical changes and emotional changes happen is called adolescence.
Here are some changes that happen only to boys and girls:
Boys:
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Girls: |
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