English

Mathna aur Magnet se Alag Karna

Class 6 Science · Chapter 9: Rozmarra mein Alag Karne ke Tareeke · NCERT Curiosity section Ch 9

Seekho

Kai Bhaarateeya gharon mein dahi ko lakdi ki mathani se matha jaata hai makkhan banaane ke liye. Mathne se makkhan ke chhote kan ikatthe hokar upar tairte hain, neeche chhaachh bachti hai.

Agar lohe ki pins ret ya aate ke dibbe mein gir jaayein? Usme magnet ghumao: lohe ki pins magnet se chipak jaati hain aur baaki reh jaata hai. Kabaadkhaane bade magnets se lohe ko baaki kachre se alag karte hain.

Aksar ek se zyada tareeke chahiye: ret, lohe ke buraade aur namak ka mishran saaf karne ke liye pehle magnet (loha), phir gholkar filter (ret), phir vashpan (namak). Tareeka har hisse ke gunon par nirbhar hai: size, vazan, magnetic hona, aur ghulna.

Explore: har mishran ke liye tareeka chuno.

  1. Har mishran ko sabse achhe tareeke se sort karo.

Yaad rakho

  • Mathna dahi se makkhan alag karta hai; magnet mishran se loha alag karta hai.
  • Hisson ke gunon se tareeka chuno; aksar ek se zyada chahiye.

Quick check

Lohe ka buraada lakdi ke buraade se kaise alag karoge?

  1. Magnet se
  2. Osaai se
  3. Vashpan se
  4. Mathkar
Answer

Magnet se. Loha magnetic hai; lakdi ka buraada nahi.

Socho

Gandhiji 1930 mein Dandi ki namak yaatra par gaye aur samudra ke paani se namak banaaya. Us namak ke liye kaunsa tareeka use hua?

Ek answer

Vashpan: samudra ka paani garam kiya ya dhoop mein chhoda gaya jab tak paani ud na jaaye, aur namak bach gaya.

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.