Adolescence: Growth & Change | Science Grade 7 CBSE

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Changes & how to care for yourself

Adolescence brings several kinds of change. Tap each one to see what's happening and the simple ways to stay healthy and feel good.

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Adolescence is the stage between childhood and adulthood (roughly ages 10–19). The body grows quickly and the mind develops too.

These changes are natural and happen to everyone.
People change at different ages and rates — so classmates the same age can look quite different. That's completely normal.

Hygiene: bathe daily, wear clean clothes, care for your skin and teeth.
Balanced diet: proteins, fruits, vegetables and plenty of water; go easy on junk food.
Sleep & exercise: enough rest and regular activity help you grow strong.

Common mistake: skipping meals or crash-dieting to change how you look. A growing body needs nutritious food — starving it harms your health.

Feelings can be stronger and change quickly during these years — that's normal.

Talk to a trusted adult (parent, teacher, doctor) when you feel worried or confused.
Say a firm NO to tobacco, alcohol and drugs — they harm a growing body and mind.
Think for yourself; you don't have to do something just because friends do (peer pressure).

Worked example. A friend is upset because they've grown much taller than everyone in class. What's a kind, correct thing to say?

"Everyone grows at their own pace — this is completely normal." Growth spurts happen at different times for different people; there's nothing wrong.

Where you'll meet it

Good hygiene, balanced meals, sleep and exercise started in your teens become lifelong habits that keep you healthy as an adult.

Since everyone is changing, a little understanding goes a long way — never tease someone about how they look or how fast they're growing.

Check yourself

Modelled on the competency-based pattern — MCQ, assertion–reason and a case study, testing whether you can use the ideas, not just recall them.

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