MedicalSurya · Class 2-3
Naak ki chhanni aur phephdon ka kaam
Sardi mein kabhi-kabhi aasmaan dhundhla aur hawa bhaari kyun lagti hai?
Socho pehle… phir dekho jawab
Kyunki thandi, ruki hui hawa dhuaan aur dhool ko zameen ke paas hi rok leti hai. Wahi hawa hum saans ke saath andar lete hain — isliye naak aur phephdon ko zyada mehnat karni padti hai.
Saans ka raasta: naak, phir gale ki nali, phir do phephde. Phephde hawa se oxygen lete hain aur khoon use poore sharir tak le jaata hai.
Naak mein chhote baal aur chipchipa balgam hota hai. Dhool usme chipak jaati hai. Kyun chheenk ya khaansi aati hai? Taaki sharir dhool ko bahar nikaal sake. Yeh sharir ki apni safai hai!
Jab hawa bahut gandi ho, toh bade batate hain ki bahar zor ka khel kam karo. Saans lene mein takleef ho, toh turant bade ko batao — woh doctor ko dikhayenge.
Ghar pe try karo
Bade ke saath ek geela kapda lo aur ghar ke bahar kisi patte ya khidki ki jaali ko halke se ponchho. Kapde par kya laga? Yahi dhool hawa mein bhi udti hai.
Wow!
Tum ek din mein hazaaron baar saans lete ho — aur tumhe gin-na bhi nahi padta!
Mummy-Papa ke liye
Aaj bachche ke saath geele kapde se ek patta ponchhiye aur dhool dikha ke poochiye: 'yeh naak tak pahunche toh naak kya karegi?'
3 sawaal
- Saans ki hawa aakhir mein kahan pahunchti hai?
Jawab dekho
Phephdon mein. Hawa naak aur gale se hoke phephdon tak pahunchti hai.
- Naak mein dhool kis cheez se chipakti hai?
Jawab dekho
Chipchipe balgam se. Naak ka chipchipa balgam dhool ko pakad leta hai.
- Saans lene mein takleef ho toh kya karein?
Jawab dekho
Turant bade ko batayein. Bade ko batao — woh doctor ko dikhayenge.
NCERT se jodo: NCERT Class 3 EVS — hamara sharir aur hawa