Class 6 Science Chapter 7 NCERT Solutions Hinglish mein: Temperature and its Measurement

Ye Curiosity (Reprint 2026-27) ke Chapter 7, Temperature and its Measurement, ke end mein diye “Let us enhance our learning” ke saare 14 sawalon ke jawab hain. Har jawab ke saath wajah bhi di hai, taaki exam mein tum apne shabdon mein samjha sako. Short notes: Chapter 7 notes.

Question 1

The normal temperature of a healthy human being is close to ____. (i) 98.6 °C (ii) 37.0 °C (iii) 32.0 °C (iv) 27.0 °C

Jawab: (ii) 37.0 °C. Normal body temperature 37.0 °C maana jaata hai. 98.6 wahi temperature Fahrenheit scale pe hai (98.6 °F), isliye 98.6 °C galat hai.

Question 2

37 °C is the same temperature as ____. (i) 97.4 °F (ii) 97.6 °F (iii) 98.4 °F (iv) 98.6 °F

Jawab: (iv) 98.6 °F.

Question 3

Fill in the blanks.

1. The hotness or coldness of a system is determined by its temperature.
2. The temperature of ice-cold water cannot be measured by a clinical thermometer. Wajah: barf jaisa thanda paani un body temperatures se bahut neeche hai jinke liye clinical thermometer bana hai.
3. The unit of temperature is degree Celsius. (Degree Fahrenheit bhi temperature ki unit hai, lekin hamare thermometers Celsius scale use karte hain.)

Question 4

The range of a laboratory thermometer is usually ____. (i) 10 °C to 100 °C (ii) −10 °C to 110 °C (iii) 32 °C to 45 °C (iv) 35 °C to 42 °C

Jawab: (ii) −10 °C to 110 °C.

Question 5

Fig. 7.6 mein chaar students paani ka temperature naap rahe hain. Sahi tareeka kisne apnaya?

Jawab: (ii) Student 2. Figure mein Student 2 thermometer ko seedha pakde hue hai, bulb paani mein hai aur beaker ki tali ya deewar ko nahi chhoo raha. Baaki teen ne galti ki:

• Student 1 ne thermometer tircha pakda hai.
• Student 3 ka bulb beaker ki tali ko chhoo raha hai.
• Student 4 ka thermometer beaker ki deewar ko chhoo raha hai.

Question 6

Fig. 7.7 ke thermometers mein 14 °C, 17 °C aur 7.5 °C ke hisaab se laal column bharo.

Jawab: Pehle har thermometer pe ek chhoti division ki value nikaalo, phir bulb se sahi mark tak column bharo.

• 14 °C: is thermometer pe 10 °C door number marks ke beech 5 divisions hain, to ek division 2 °C padhti hai. 10 °C mark se 2 divisions upar tak bharo.
• 17 °C: number marks ke beech 10 divisions, to ek division 1 °C. 10 °C mark se 7 divisions upar tak bharo.
• 7.5 °C: number marks ke beech 20 divisions, to ek division 0.5 °C. 0 °C mark se 15 divisions upar tak bharo, yaani 7 °C aur 8 °C ke theek beech mein.

Question 7

Fig. 7.8 mein thermometer ka ek hissa dekho.

1. Ye kis type ka thermometer hai? Laboratory thermometer. Iska scale 0 °C se neeche (−10 °C) se shuru hota hai aur body temperatures se bahut upar jaata hai. Clinical thermometer aisa nahi hota.
2. Reading kya hai? 26 °C. Laal column 20 °C mark ke baad 6 chhoti divisions pe khatam hota hai.
3. Ye sabse chhoti kitni value naap sakta hai? 1 °C. 10 °C door number wale marks ke beech 10 chhoti divisions hain, to 10 ÷ 10 = 1 °C.

Question 8

A laboratory thermometer is not used to measure our body temperature. Give a reason.

Jawab: Laboratory thermometer ko munh se nikaalte hi uska liquid column girne lagta hai, aur munh ke andar rakhe-rakhe use padh nahi sakte. Isliye sahi reading nahi milegi. Ye liquid wali glass tube bhi hai jo toot sakti hai aur munh mein daalne ke liye nahi bani. Body temperature ke liye clinical thermometer bana hai.

Question 9

Vaishnavi ke body temperature ka record (Table 7.4).

1. Sabse zyada recorded temperature: 40.0 °C.
2. Ye kab record hua? Day One ko shaam 7 baje (7 pm).
3. Kis din temperature normal hua? Day Three ko. Day Three ko 4 pm tak ye 37.0 °C pe aa gaya aur uske baad usi ya usse kam pe raha.

Question 10

22.5 °C naapne ke liye Fig. 7.9 ke teen thermometers mein se kaunsa loge? Samjhao.

Jawab: Thermometer (b). 22.5 °C, 22 °C aur 23 °C ke theek beech mein hai, isliye aisa thermometer chahiye jiski ek chhoti division 0.5 °C padhe.

• (a) mein 10 °C door marks ke beech 10 divisions hain, yaani ek division = 1 °C.
• (b) mein 10 °C door marks ke beech 20 divisions hain, yaani ek division = 0.5 °C.
• (c) mein 10 °C door marks ke beech 5 divisions hain, yaani ek division = 2 °C.

Sirf (b) hi 22.5 °C dikha sakta hai.

Question 11

The temperature shown by the thermometer in Fig. 7.10 is: (i) 28.0 °C (ii) 27.5 °C (iii) 26.5 °C (iv) 25.3 °C

Jawab: (ii) 27.5 °C. Is scale pe number wale marks 5 °C door hain, har poore degree pe mark hai, aur har aadhe degree pe ek chhota mark hai. Laal column 27 °C aur 28 °C ke beech wale aadhe degree mark pe khatam hota hai.

Question 12

A laboratory thermometer has 50 divisions between 0 °C and 100 °C. What does each division measure?

Jawab: Ek division = 100 °C ÷ 50 = 2 °C.

Question 13

Aise thermometer ka scale banao jiski sabse chhoti division 0.5 °C padhe, sirf 10 °C se 20 °C tak.

Jawab: 10 °C aur 20 °C ka fark 10 °C hai. Har division 0.5 °C padhe, iske liye 10 ÷ 0.5 = 20 barabar divisions chahiye.

1. Ek seedhi line kheencho; ek end pe 10 aur doosre pe 20 likho.
2. Line ko 20 barabar hisson mein baanto.
3. Har doosri line ko lamba banao, taaki har poore degree pe lamba mark ho.
4. 10, 15 aur 20 likho, aur °C likho.

Question 14

Komal kehti hai use 101 degree bukhaar hai. Wo Celsius scale ki baat kar rahi hai ya Fahrenheit ki?

Jawab: Fahrenheit scale. Insaan ka body temperature 101 °C hona namumkin hai: hamara temperature normally 35 °C aur 42 °C ke beech rehta hai. Normal body temperature 98.6 °F hai, to 101 °F normal se thoda zyada hai, yaani bukhaar. (Extra: 101 °F lagbhag 38.3 °C hota hai.)