Physical Changes in Girls Growth spurt Breasts develop Skin becomes oily Hips widen Waistline narrows Underarm hair appear Pubic hair appear External genitals enlarge Ovulation occurs (may or may not) Menstruation begins

Physical Changes in Boys Pubic hair appear Facial hair appear Penis and testes enlarge Sperm production begins Ejaculation occurs Growth spurt Muscles develop Skin becomes oily Shoulders broaden Voice deepens Underarm and chest hair appear

Emotional and Social Changes Need for attachment to a peer group. Peer group defines behavioural code Forms new relationships Need for Independence Need to establish own identity Inquisitiveness Increased energy levels Changes in dress code