E ExamMaster

CBSE Class 7 · Science

Adolescence: A Stage of Growth and Change

Official NCERT chapter from Curiosity (book code gecu1). ExamMaster notes are original teaching at CBSE Class 7 depth.

This lesson follows the official chapter “Adolescence: A Stage of Growth and Change” in Curiosity. The words below are ExamMaster’s teaching, not a paste from the book. Use the NCERT chapter for the classroom sequence; use these notes to hold the idea without copying exercises or figures.

  • CBSE Class 7
  • Easy level
  • 8 concepts

1Growing With Age: The Teenage Years

Teenage years are a growth-stage: height, voice, and body outlines can change over months and years. Growing with age here is a timeline you can name, not a race with a classmate.

A single photo of a taller friend is not the whole stage.

Figure. Adolescence is the teenage span, about 13 to 19, between childhood and adulthood. The band is an age test, not a guess from height alone.

How it works

  1. Name the stage as a span of yearsThe teenage stretch.
  2. Name a change that can happen across that spanHeight, voice — as taught.
  3. Keep one person’s timeline as one caseNot a contest.

2Changes that Indicate Reproductive Maturity

Reproductive maturity at this class means the body becomes able to start the adult reproductive jobs it was built for — a stage-name, not a how-to. The signs you were taught (as in the chapter) are the indication; we do not add extra detail.

Curiosity about another person’s body is not a classroom measurement.

Figure. Reproductive maturity shows as a cluster of body changes you can name: a growth spurt, a voice change, new hair, and more sweat. Timing differs; the cluster is the test, not any one sign.

How it works

  1. Treat it as a stage-name on a growth mapMaturity as taught.
  2. Keep only the signs the lesson namedIndication.
  3. Stop — no extra private how-toSchool size.

3Emotional and Behavioural Changes

Moods, friendships, and what feels urgent can swing in this stage. Emotional and behavioural changes are real and varied. A single bad day is a day; a pattern you can name is the heading’s object.

Labelling a classmate is not a science test.

Figure. Moods swing in the teenage years. The useful move is to name the feeling and tell a trusted adult, not to hide it until it spills.

How it works

  1. Name a feeling-or-habit change as a possibility, not a verdictMoods, sleep, friends — as taught.
  2. Keep it generalPeople differ.
  3. Do not diagnose a person from one sceneA pattern-word, not a stamp.

4Making Adolescence a Joyful Journey

A joyful journey here means habits you can name: sleep, food, a trusted adult to ask, staying kind in a group. Joy is a job-list, not a poster smile.

A slogan “enjoy your youth” with no habit is a poster.

Figure. A smoother teenage stretch is built from ordinary habits: enough food and water, daily play, sleep, and keeping the body clean. None of them is a luxury.

How it works

  1. Name one habit that helps the stageSleep, food, a question to a trusted adult.
  2. Name one group-jobKind, no stamp.
  3. Keep the list small and doableJourney as jobs.

5The ‘Why’ Question for Adolescence

The why-question is: these changes have jobs in becoming an adult body and an adult social life, as the lesson framed them. Why is a purpose-sentence at Class 7, not a medical lecture.

A rumour why is not the lesson’s why.

Figure. The why of teenage change is chemical, not magical. Endocrine glands release hormones; those messengers tell the body to grow and to mature.

How it works

  1. Ask why this stage exists in the lesson’s termsGrowth toward adult jobs.
  2. Answer with the taught purpose-sentenceThe why.
  3. Refuse a rumourStay with the lesson’s size.

6A definition is a test you can run

Adolescence is a stage-test: a span plus taught changes. If you cannot name the span or a taught change, you have a word only.

Using the word as an insult is not the definition.

Figure. Adolescence is a test you can run, not a vibe. Ask three questions: is the age about 13 to 19, is growth speeding up, and have maturity signs begun?

How it works

  1. Name the spanTeenage years as taught.
  2. Name one taught changeThe test.
  3. Then the word has contentThe definition ran.

7Name the given before the unknown

The given is what the lesson named. The unknown is a heading (stage, sign, habit). Do not add a rumour as if it were given.

A film scene is not the given.

Figure. Name what you can point to — a jump in height, a voice change — before you reach for a hormone name. The given is the body fact; the unknown is the why.

How it works

  1. Copy the taught listThe given.
  2. Name which heading you are answeringThe unknown.
  3. Stay inside the listGiven first.

8One worked case is enough at this class

One honest sentence about the stage is enough. A page of the same height-clone does not add a new why.

Ten twins of “people grow” are still one idea.

Figure. One child is enough at this class. Height 132 cm at 10, 152 cm at 13, 164 cm at 16. The jump across 10 to 13 is the growth spurt the chapter names.

How it works

  1. Write one stage-sentenceThe case.
  2. A second only to check you did not add a rumourOptional.
  3. StopThis class.
Reproductive maturity in this chapter is
  1. A stage-name with only the signs the lesson named
  2. A how-to
  3. A contest

School size; no extra private detail.

Notes

  • Mapped to the official NCERT chapter “Adolescence: A Stage of Growth and Change”. Original teaching only — no textbook sentences.
  • Science here is Physics, Chemistry and Biology ideas at this class, never a language or social-science chapter.

Recap

Hold these pegs from the official chapter “Adolescence: A Stage of Growth and Change”. The wording is ExamMaster’s teaching, not a textbook recap.

Growing With Age: The Teenage Years
Teenage years are a growth-stage: height, voice, and body outlines can change over months and years.
Changes that Indicate Reproductive Maturity
Reproductive maturity at this class means the body becomes able to start the adult reproductive jobs it was built for — a stage-name, not a how-to.
Emotional and Behavioural Changes
Moods, friendships, and what feels urgent can swing in this stage.
Making Adolescence a Joyful Journey
A joyful journey here means habits you can name: sleep, food, a trusted adult to ask, staying kind in a group.
The ‘Why’ Question for Adolescence
The why-question is: these changes have jobs in becoming an adult body and an adult social life, as the lesson framed them.
A definition is a test you can run
Adolescence is a stage-test: a span plus taught changes.

Practise Adolescence: A Stage of Growth and Change

Reading is free and needs no account. Practice, mocks and progress live in the app.

  • A 4-question practice set that ends the chapter
  • 1 quick check with worked explanations
  • Timed mocks scored with the real marking scheme
  • Readiness tracked per topic, kept on your device
Continue with Google — freeNo card, no trial. Works offline once installed.