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Umra ke Saath Badhna: Teenage Saal

Class 7 Science · Chapter 6: Kishoraavastha: Badhat aur Badlaav ka Daur · NCERT Curiosity section 6.1

Seekho

Aam ki guthli paudha banti, phir ped, aur kai saal baad hi apne phal aur beej deti. Insaan bhi charanon se badhte: shishu avastha, bachpan, kishoraavastha, vayaskta aur budhaapa. Har vyakti apni raftaar se inse guzarta.

Garmi ki chhuttiyon ke baad Ishaan class aata hai aur sab dekhte hain. "Tum to bahut lambe ho gaye!" Meher kehti. "Aur aawaaz bhi alag lag rahi!" Zoya jodti. Ishaan thoda sharmaakar hansta. Teacher samjhaati: lagbhag 10 se 19 saal tak hum kishoraavastha se guzarte, bachpan aur vayaskta ke beech tez badhat ka samay.

Aam badlaav: lambaai mein tez badhat, vazan aur taakat badhna, ladkon mein chaude kandhe aur ladkiyon mein stanon ka vikaas. Voice box badhta, ladkon mein zyaada, to aawaaz phat sakti ya gehri ho sakti; gale mein jo ubhaar banta wo Adam's apple hai. Dono mein bagal aur jananaang kshetra mein baal aate, aur ladkon ke chehre par baal aane lagte.

Tvacha ki tel granthiyan zyaada sakriya hoti, jo chhidra band karke muhaase kar sakti. Chehra halke se dhoyein aur muhaase na dabaayein. Sabse zaroori: in badlaavon ka samay aur maatra har vyakti mein alag, aur har raftaar saamaanya hai. Aawaaz, chehre ke baal aur stan jaise badlaav dviteeyak laingik lakshan hain: ye puberty ki shuruaat dikhaate, jab shareer prajanan ke yogya banne ki taiyaari karta.

Explore: kaun sa badlaav kisme?

  1. Har badlaav sort karo.

Yaad rakho

  • Kishoraavastha (lagbhag 10–19 saal) tez badhat aur aawaaz, baal, tvacha, shareer ke aakaar mein badlaav laati.
  • Dviteeyak laingik lakshan puberty dikhaate; samay alag hota aur ye saamaanya.

Quick check

Kabir 13 ka hai aur abhi moonchh nahi, jabki dost ki hai. Ye …

  1. bilkul saamaanya: badlaav alag samay par aate
  2. bimaari ka sanket
  3. kam khaane se
  4. asambhav
Answer

bilkul saamaanya: badlaav alag samay par aate. Har koi apni raftaar se kishoraavastha se guzarta.

Socho

Ek hi umra ke do dost lambaai mein bahut alag kyun dikh sakte?

Ek answer

Kishoraavastha ki tez badhat alag logon mein alag umra par shuru hoti, aur parivaar ke gun, khaana aur sehat bhi asar daalte.

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.