6 pages matching puberty in this book
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abdomen ability adults armpits babies grow begin behave belly button bigger boy or girl boys and girls called characteristics child develop embryo expected father father's sperm fear fertilized egg fetus Fraternal twins friends genital girl becomes girl or woman girl's girls and women girls your age grandparents grown-up habits Identical twins individual intercourse keep kind of person live look male genital organ maturing boys maturing girls menstrual cycle menstrual pad mother's uterus nocturnal emission one's oneself ovaries ovulation ovum parents penis pituitary placenta pregnant puberty pubic hair sanitary napkin scrotum semen seminal emission sex glands sex hormones sex organs sexual maturing single birth skin social inheritance someone sometimes tall taller teachers testes testicles things Tiny tubes umbilical cord umbilicus usually vagina wear wet dream womb WORDS TO LEARN worn by girls