Jeevit aur Nirjeev
Class 6 Science · Chapter 10: Jeevit Praani: Unki Visheshtaayein · NCERT Curiosity section 10.1
Seekho
Kabir ki chhoti behen poochhti hai, "Kya meri khilauna gaadi zinda hai? Wo chalti hai!" Kabir sochta hai: gauraiya bhi chalti hai, par baadal bhi. Sirf chalne se koi jeevit nahi hota. To phir kya?
Jeevit cheezon mein kai baatein saajhi hain. Unhe urja ke liye khaana chahiye, wo saans lete hain, badhte hain, aas-paas ke badlaav par pratikriya dete hain, kachra nikaalte hain, prajanan karte hain (apne jaise aur banaate hain), aur unka ek nishchit jeevan kaal hota hai.
Khilauna gaadi tabhi chalti hai jab dhakelo ya chaabi bharo; na khaati, na badhti, na bachche deti, isliye nirjeev hai. Beej bejaan dikhta hai, par paani aur garmi milne par paudha banta hai: wo jeevit hai, bas aaraam kar raha hai.
Paudhe bhi jeevit hain, bhale zyaadatar chalte nahi. Wo dhoop mein apna khaana banaate hain, lambe hote hain, aur pratikriya dete hain: surajmukhi Suraj ki taraf ghoomta hai aur chhui-mui ke patte chhoone par simat jaate hain.
Explore: jeevit ya nirjeev?
- Har ek sort karo.
Yaad rakho
- Jeev khaate, saans lete, badhte, pratikriya dete, kachra nikaalte aur prajanan karte hain.
- Sirf chalne se koi cheez jeevit nahi hoti.
Quick check
Chalti khilauna gaadi jeevit kyun NAHI hai?
- Na khaati, na badhti, na prajanan karti
- Kyunki chhoti hai
- Kyunki rangeen hai
- Bahut tez chalti hai
Answer
Na khaati, na badhti, na prajanan karti. Jeevit cheezein khaati, badhti aur prajanan karti hain; sirf chalna kaafi nahi.
Socho
Aag badhti hai, failti hai aur use hawa chahiye. Kya wo jeevit hai? Jeevon ke features se samjhaao.
Ek answer
Nahi. Bhale wo badhti aur hawa use karti hai, aag khud prajanan nahi karti, andar se nahi badhti, uska jeevan chakra nahi, aur jeevon ki tarah pratikriya nahi deti.
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.