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← 3.1 Human Reproductive System

Physical changes in boys

Integrated Science · Grade 7 · about 40 minutes

Boys in puberty: voice, hair, shoulders, genital growth, wet dreams, height, skin and sweat. Timing differs. Reproductive implication: testes begin to make sperm.

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  • 7 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
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Other lessons in this sub-strand

  1. Adolescence and puberty
  2. Why we study the reproductive system
  3. Male reproductive organs
  4. Functions of male parts
  5. Female reproductive organs
  6. Functions of female parts
  7. The two systems compared
  8. Physical changes in girls
  9. Physical changes in boys
  10. Menstruation and hygiene
  11. Personal hygiene in puberty
  12. Social changes and respect
  13. Emotional changes
  14. Developmental challenges
  15. Coping and trusted adults
  16. My adolescence plan