Khaane ke Ghatakon ki Jaanch

Class 6 Science · Chapter 3: Soch-Samajhkar Khaana: Swasth Shareer ki Raah · NCERT Curiosity section 3.3

Seekho

Hum kaise jaanein kin khaanon mein starch, fat ya protein hai? Aasaan tests se! Anjali ki class ek testing table lagaati hai: khaanon ke chhote sample, dropper aur safed kaagaz. (Chemicals sirf teacher ki madad se.)

Starch test: khaane par patle iodine solution ki 2–3 boondein daalo. Agar neela-kaala ho jaaye, khaane mein starch hai. Aaloo ka tukda neela-kaala hota hai; cheeni ka paani bhoora hi rehta hai.

Fat test: khaane ko kaagaz par ragdo aur sookhne do. Sookhne ke baad bhi rehne wala aar-paar dikhne wala chikna dhabba matlab fat. Paani bhi geela dhabba banata hai, par wo sookh jaata hai.

Protein test: khaane ka paste paani mein milaate hain, phir teacher copper sulphate aur caustic soda ki kuch boondein daalte hain. Baingani rang protein dikhaata hai: ande ki safedi aur daal ka paste baingani ho jaate hain.

Explore: khud tests karo.

1. Har khaane ko iodine se test karo, phir starch wale tick karo.
2. Ab kaagaz test karo aur fat wale khaane tick karo.

Yaad rakho

• Starch: iodine neela-kaala. Fat: kaagaz par aar-paar chikna dhabba. Protein: baingani rang.
• Tests hamesha saavdhaani se karo, aur chemicals sirf teacher ke saath.

Quick check

Bread ke tukde par iodine neela-kaala ho gaya. Ye kya dikhaata hai?

1. Bread mein starch hai
2. Bread mein fat hai
3. Bread mein vitamin C hai
4. Bread mein koi poshan nahi

Socho

Rohan kehta hai, "Chaawal mein protein nahi kyunki iodine test neela-kaala hua." Uski soch mein kya galat 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.