Matter Kya Hai?
Class 6 Science · Chapter 6: Hamare Aas-paas ke Padaarth · NCERT Curiosity section 6.4
Seekho
Divit gubbaara phulaata hai. Wo bada hota hai, to andar kuch hai: hawa. Hawa jagah gherti hai. Agar wo pehle aur baad mein gubbaara tole, bhara hua thoda bhaari hota hai: hawa ka bhi dravyamaan (mass) hai.
Jo bhi cheez dravyamaan rakhe aur jagah ghere wo matter (padaarth) hai. Kitaabein, paani, hawa, tumhara shareer, patthar: sab matter hain. Matter thos, drav ya gas ho sakta hai.
Kuch cheezein matter nahi hain: roshni, awaaz, garmi, aur khushi jaisi bhaavnaayein ka dravyamaan nahi aur wo matter ki tarah jagah nahi gherti.
Explore: matter hai ya nahi?
- Har ek sort karo.
Yaad rakho
- Matter wo hai jiska dravyamaan ho aur jagah ghere; thos, drav ya gas ho sakta hai.
- Roshni, awaaz aur garmi matter nahi hain.
Quick check
Inme se matter kaunsa hai?
- Hawa
- Roshni
- Awaaz
- Khushi
Answer
Hawa. Hawa ka dravyamaan hai aur wo jagah gherti hai.
Socho
Khaali bottle aur paani ke katore se kaise dikhaoge ki hawa jagah gherti hai?
Ek answer
Bottle ko ulta karke paani mein dabaao. Paani bottle nahi bharta, kyunki andar pehle se hawa hai. Tircha karo to bulbule nikalte hain aur paani andar aata 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.