Questions of Changes During Adolescence: Puberty - Questions at the end of the chapter - Chapter 6 Class 7 - Adolescence: A Stage of Growth and Change (Curiosi

Last updated at April 26, 2026 by

Q1 (Easy): Rahul's voice is cracking. What does this signify? (a) Rahul has a disease (b) Rahul is going through adolescence (c) Rahul has lost his permanent teeth (d) Rahul is becoming a child

Answer:
We have studied that voice changes occur during puberty when the larynx grows . This is why voice cracking happens in boys.

  • Voice box grows larger during adolescence
  • Larynx muscles stretch unevenly causing hoarse voice
  • Voice cracking is normal during puberty

Correct answer: (b) Rahul is going through adolescence

Voice Change in Boys Puberty begins Hormones trigger body changes Larynx grows Voice box becomes larger Muscles stretch Larynx muscles grow unevenly Voice cracks and becomes hoarse

Q5 (Easy): List the changes that occur in boys and girls during puberty.

Answer:
We have studied that puberty brings physical changes in both boys and girls . This is why adolescents look different from children.

  • Height increases suddenly in both sexes
  • Body shape changes with broader shoulders
  • Voice becomes deeper in boys, fuller in girls
  • Sex organs develop completely during this period
  • Secondary sexual characteristics appear in both
Puberty Changes Change Boys Girls Height Sudden increase Sudden increase Body shape Broader shoulders, chest Wider hips, waist Voice Deeper, cracking Fuller, high pitched Hair growth Facial hair, body hair Body hair only Sex organs Testes, penis develop Ovaries, breasts develop

Q8 (Medium): Why is it said that adolescence is a period of mental, intellectual, and emotional development?

Answer:
We have studied that adolescence involves mental and emotional changes along with physical growth . This is why teenagers think differently.

  • Adolescents develop their own perspectives on world
  • They start thinking critically and independently
  • Individual identity formation makes them self-conscious
  • Decision-making abilities improve during this period
Mental Development in Adolescence Independent thinking Critical analysis skills develop Identity formation Self-consciousness increases Decision making Wider range of choices World perspective Own views on life

Q9 (Medium): What role do genes play in the height and growth of adolescents?

Answer:
We have studied that height is largely determined by genes inherited from parents . This is why children resemble their parents in height.

  • Genes control maximum possible height of individual
  • Adequate nutrition helps reach genetically determined height
  • Growth rate varies between different individuals
  • Parents' height influences children's final height
Height Determination Genes inherited From both parents Growth potential Maximum height decided Nutrition needed To reach full height Final adult height achieved
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