Question 9 — Categorise Physical Changes as Boys, Girls, or Both - Questions at the end of the chapter - Chapter 6 Class 7 - Adolescence: A Stage of Growth and Change (Curiosi

Last updated at July 13, 2026 by

Q9
Question

During adolescence, the boys and girls undergo certain physical changes, a few of which are given below. Categorise these changes in the table given:

(i) Change in voice
(ii) Development of breasts
(iii) Growth of moustache
(iv) Growth of facial hair
(v) Pimples on the face
(vi) Growth of hair in the pubic region
(vii) Growth of hair in armpits

📚 Concept: 6.1 Secondary Sexual Characteristics
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Answer
Observed only in boys Observed only in girls Common in boys and girls
(iii) Growth of moustache
(iv) Growth of facial hair 		(ii) Development of breasts (i) Change in voice
(v) Pimples on the face
(vi) Growth of hair in pubic region
(vii) Growth of hair in armpits
  • Note on voice change: more pronounced in boys (hoarse voice, visible Adam's apple), but a slight voice change also happens in girls — so it sits in the “common” column.

→ Boys: moustache and facial hair. Girls: breasts. Common: voice, pimples, body hair.

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