2. Girls
Physical
changes
Genitals get bigger
Breasts develop
Hair grows in pubis and underarm
Vocal cords grow
Sebaceous glands secrete more sebum, but less than in
boys.
Menarche: first period
Body fat increases
3. Boys
Physical
changes
Genitals get bigger
Shoulders widen and pelvis narrows.
Body hair grows.
Vocal cords grow, results in a lower voice
Sebaceous glands secrete more sebum
Sweating increases and acne develops on face, ches
and back.
Muscle mass increases
4. Girls and Boys
Mental
changes
Need for freedom
Feel self-sufficient
Don’t feel understood
Want to belong to a group of people of their kind.
Discover their body
Increasingly interested in their sexuality
Become rebellious and even violent which causes communication
problems.
