Thandak ka Asar
Class 6 Science · Chapter 8: Paani ki Avasthaon ki Yaatra · NCERT Curiosity section 8.6
Seekho
Haath ki peeth par paani ki boond rakhkar phoonko. Haath thanda lagta hai. Vashpan ko garmi chahiye, aur wo garmi tumhari twacha se leta hai.
Isiliye garmi mein pasina humein thanda karta hai, aur paseene mein pankhe ke neeche achha lagta hai. Mitti ka matka ya surahi paani thanda rakhta hai: paani chhote chhedon se rissakar bahar se bhaap banta hai, matke ko thanda karta hai.
Ped patton se bhaap chhodte hain, jo aas-paas ki hawa thandi karti hai. Garmi ki dopahar ped wali sadak khaali sadak se thandi lagne ki ek wajah yahi hai.
Explore: kya ye vashpan se thanda karta hai?
- Har ek sort karo.
Yaad rakho
- Vashpan thandak deta hai: satah se garmi leta hai.
- Pasina, matka aur ped sab vashpan se thanda karte hain.
Quick check
Garmi mein mitti ke matke ka paani thanda kyun rehta hai?
- Paani rissakar bhaap banta hai, garmi le jaata hai
- Mitti barf banaati hai
- Matka dhoop mein rakha hai
- Mitti saari garmi rok deti hai
Answer
Paani rissakar bhaap banta hai, garmi le jaata hai. Vashpan thandak deta hai.
Socho
Garam nam din mein garam sookhe din se zyada bechaini kyun hoti hai?
Ek answer
Nam hawa mein pasina dheere sookhta hai, isliye achhi thandak nahi deta. Sookhe din pasina jaldi sookhkar twacha thandi karta hai.
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.