Brahmaand
Class 6 Science · Chapter 12: Dharti ke Paar · NCERT Curiosity section 12.5
Seekho
Milky Way bas ek galaxy hai. Shaktishaali doorbeenon se khagolshaastriyon ne arabon galaxies dhoondhi hain, har ek mein arabon taare. Jo kuch bhi hai (saari galaxies, taare, grah, antariksh, aur hum) milkar brahmaand (universe) hai.
Brahmaand mein dooriyaan itni badi hain ki roshni, jo sabse tez hai, ko taaron aur galaxies ke beech jaane mein saal, hazaaron saal ya laakhon saal lagte hain. Door ke taare ko dekhte hain to wo roshni dekhte hain jo bahut pehle nikli thi!
Bhaarateeya scientists ne sadiyon se khagol vigyaan mein yogdaan diya hai, bahut pehle Aryabhata se aaj ki vedhshaalaon aur Chandrayaan aur Aditya-L1 (jo Suraj ka adhyayan karta hai) jaise missions tak. Kaun jaane: agli khoj shaayad tum karo!
Explore: kaun kahan?
- Har ek sort karo.
Yaad rakho
- Brahmaand sab kuch hai: arabon galaxies, har ek mein arabon taare.
- Dooriyaan itni badi hain ki taaron ki roshni humtak pahunchne mein saal ya zyada lagte hain.
Quick check
Sabse bada kaunsa hai?
- Brahmaand
- Milky Way
- Saur mandal
- Suraj
Answer
Brahmaand. Brahmaand mein arabon galaxies hain, Milky Way bhi.
Socho
Inhe sabse chhote se sabse bade ke kram mein lagao: galaxy, Prithvi, brahmaand, Suraj, saur mandal.
Ek answer
Prithvi → Suraj → saur mandal → galaxy → brahmaand.
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.