Class 7 Science Chapter 6, Adolescence: A Stage of Growth and Change, explains the physical, biological, emotional and social changes that take place during the teenage years and how nutrition, hygiene, exercise and positive habits make adolescence a healthy, joyful stage.
What Class 7 Science Chapter 6 Covers
6.1–6.2 Growing With Age & Reproductive Capability traces the growth spurt, changes in voice (Adam’s apple), sweat and sebaceous glands, facial/body hair, and internal changes that mark puberty and reproductive maturity, including the menstrual cycle.
6.3–6.4 Emotional Changes & Making Adolescence Joyful discusses mood swings, self-consciousness and peer influence (6.3), alongside balanced nutrition rich in iron and calcium (6.4.1), personal and menstrual hygiene (6.4.2), physical activity (6.4.3), responsible screen/social life (6.4.4) and saying NO to harmful addictive substances (6.4.5).
6.5 The ‘Why’ Question for Adolescence explains the role of hormones secreted by endocrine glands in initiating and regulating changes during adolescence.
Exercises in Chapter 6
- In a Nutshell key points summary and Let Us Enhance Our Learning chapter exercises.
- Exploratory Projects and Dive Deeper hands-on science activities.
Read Class 7 Science Chapter 6 Online
More Chapters
- Previous: Chapter 5: Changes Around Us: Physical and Chemical
- Next: Chapter 7: Heat Transfer in Nature
- Hindi medium: Class 7 Science Chapter 6 PDF in Hindi (Jigyasa)
- All Science chapters and the other Class 7 books: Class 7 NCERT books 2026-27
- All Class 1 to 12 NCERT Textbooks: NCERT Books PDF (Class 1–12)
FAQ
What is the difference between adolescence and puberty?
Adolescence is the period of life (roughly ages 10 to 19) during which a child grows into an adult, while puberty is the biological process of physical changes through which an adolescent reaches reproductive maturity.
Why is iron-rich food especially important during adolescence?
Rapid growth and blood formation during adolescence—especially in girls due to menstruation—require iron-rich foods like leafy greens, jaggery, pulses and citrus fruits to prevent anaemia.