Class 6 Science Chapter 7: Temperature and its Measurement (Hinglish Notes)
Ye chapter 5 lines mein
Temperature batata hai ki koi cheez kitni garam ya thandi hai, aur sirf chhoo kar ise sahi nahi jaana ja sakta. Ise thermometer se naapte hain: body temperature ke liye digital clinical thermometer, aur baaki cheezon ke liye laboratory thermometer (usually −10 °C se 110 °C). Common scales hain Celsius (°C), Fahrenheit (°F) aur Kelvin (K), aur SI unit kelvin hai. Normal body temperature 37.0 °C maana jaata hai, jo 98.6 °F ke barabar hai.
Kya chhoo kar temperature pata chal sakta hai?
Sahi tarah se nahi. Agar ek haath thande paani mein raha ho aur doosra garam paani mein, to wahi tap ka paani pehle haath ko garam aur doosre ko thanda lagega. Haath sirf compare karte hain, naapte nahi. Isliye thermometer chahiye.
Temperature kya hai?
Temperature kisi cheez ki garmi ya thandak ka bharosemand naap hai. Jo cheez zyada garam hai, uska temperature zyada hota hai. Do temperatures ka fark batata hai ki ek cheez doosri se kitni zyada garam hai.
Hum kaunse thermometers use karte hain?
- Clinical thermometer: insaan ka body temperature naapta hai. Aajkal ye usually digital hota hai, battery se chalta hai aur number screen pe dikhata hai. Purane mercury wale thermometers hataaye ja rahe hain, kyunki mercury bahut zehreela hai.
- Laboratory thermometer: lambi, patli, band glass ki tube, jiske ek end pe liquid (laal rang ka alcohol ya mercury) wala bulb aur tube pe Celsius scale hota hai. Iski range usually −10 °C se 110 °C hoti hai.
- Room thermometer: deewar pe taanga hota hai aur kamre ki hawa ka andaazan temperature batata hai.
Temperature ke scales kaunse hain?
Celsius (°C) wo scale hai jo hamare thermometers usually use karte hain. Fahrenheit (°F) kuch thermometers mein hota hai: 37.0 °C = 98.6 °F. Kelvin (K) SI unit hai, jo science mein use hoti hai. Celsius ko kelvin mein badalne ke liye 273.15 jodo.
Thermometer sahi tarah kaise padhte hain?
Pehle ek chhoti division ki value nikaalo. Thermometer seedha pakdo, bulb ko container ki deewar aur tali se door rakho, aur reading tab lo jab bulb abhi bhi liquid mein ho. Aankh liquid column ke top ki seedh mein honi chahiye.
Air temperature aur weather
Weather report har din ka maximum aur minimum air temperature batati hai. Ye roz badalta hai: garmiyon ki taraf badhta hai aur sardiyon mein ghatta hai. Duniya bhar ke weather stations air temperature record karte hain, jisse weather forecast banta hai.
Key terms (zaroori shabd)
| Term | Matlab |
|---|---|
| Temperature (taapmaan) | Kisi cheez ki garmi ya thandak ka bharosemand naap. Jo cheez zyada garam, uska temperature zyada. |
| Thermometer | Temperature naapne wala device. |
| Clinical thermometer | Insaan ka body temperature naapta hai. Aajkal ye usually digital hota hai aur battery se chalta hai. |
| Laboratory thermometer | Band (sealed) glass ki patli tube, jiske ek end pe liquid wala bulb aur tube pe Celsius scale hota hai. Body ke alawa baaki temperatures ke liye. |
| Range | Thermometer jitne kam se kam aur zyada se zyada temperature naap sakta hai. |
| Smallest division | Ek chhoti division kitna temperature dikhati hai: do number wale marks ka fark ÷ unke beech ki divisions. |
| Degree Celsius (°C) | Celsius scale ki unit. Hamare clinical aur laboratory thermometers isi mein padhte hain. |
| Degree Fahrenheit (°F) | Fahrenheit scale ki unit. 37.0 °C = 98.6 °F. |
| kelvin (K) | Temperature ki SI unit. Temperature in K = temperature in °C + 273.15. |
| Normal body temperature | Bahut saare healthy logon ka average body temperature, jo 37.0 °C maana jaata hai. |
| Infrared thermometer | Bina chhue temperature naapne wala (non-contact) thermometer. |
| Air temperature | Hawa ka temperature. Weather report har din ka maximum aur minimum batati hai. |
Is chapter ke topics
Practice karo
-
Temperature kis device se naapte hain?
Jawab dekho
Jawab: (b) Thermometer
-
Temperature ki SI unit kya hai?
Jawab dekho
Jawab: (c) kelvin
-
Healthy insaan ka normal body temperature kitna maana jaata hai?
Jawab dekho
Jawab: (b) 37.0 °C 98.6 Fahrenheit scale pe wahi temperature hai, yaani 98.6 °F, °C nahi.
-
School lab mein garam paani ka temperature naapne ke liye kaunsa thermometer loge?
Jawab dekho
Jawab: (b) Laboratory thermometer
-
25 °C Kelvin scale pe kitna hoga?
Jawab dekho
Jawab: (c) 298.15 K 25 + 273.15 = 298.15
Students ke sawal
Class 6 Science Chapter 7 mein kya-kya padhna hai?
Garam aur thanda, temperature, clinical aur laboratory thermometer, Celsius, Fahrenheit aur Kelvin scales, thermometer sahi tarah padhna, aur weather report mein air temperature.
Kya “Temperature and its Measurement” nayi Curiosity book mein hai?
Haan. Ye Curiosity ka Chapter 7 hai, jo 2026-27 session mein Class 6 Science ki textbook hai.
Chapter 7 ki exercise mein kitne sawal hain?
“Let us enhance our learning” mein 14 sawal hain. Sabke jawab is chapter ke NCERT solutions page pe hain.
Koi sawal atak gaya?
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