What is the correct way to immerse the thermometer in water?

It should be partially immersed

What should the position of the eye be when reading the thermometer?

To the right of the thermometer

Directly in line with the liquid column

Why should the bulb of the thermometer not touch the bottom of the beaker?

To prevent the thermometer from breaking

To avoid damaging the thermometer

To avoid getting an inaccurate reading

What might cause differences in temperature readings among students?

Due to different water temperatures

Why is air temperature an important weather parameter?

To record historical temperatures

What should be done before using a digital clinical thermometer?

Wash the tip with soap and water

NCERT Solutions Class 6 Science Chapter 7 – Temperature And Its Measurement

Name: Temperature And Its Measurement – Class 6 Science
Uploaded: 2026-05-31
Description: This chapter explains how temperature tells us how hot or cold something is, and how different thermometers— like clinical, digital, and laboratory types—help measure it. It also highlights air temperature and Anna Mani’s role in weather science and renewable energy in India.

Class 6 Science

Last Updated: 31 May 2026

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Chapter Introduction

This chapter explains how temperature tells us how hot or cold something is, and how different thermometers— like clinical, digital, and laboratory types—help measure it. It also highlights air temperature and Anna Mani’s role in weather science and renewable energy in India.

हिंदी में (Hindi)

यह अध्याय समझाता है कि तापमान हमें बताता है कि कोई वस्तु कितनी गर्म या ठंडी है, और क्लिनिकल, डिजिटल तथा प्रयोगशाला थर्मामीटर जैसे विभिन्न थर्मामीटरों से इसे कैसे मापा जाता है। यह वायुमंडलीय तापमान को भी उजागर करता है और भारत में मौसम विज्ञान तथा नवीकरणीय ऊर्जा के क्षेत्र में अन्ना मणि के योगदान को भी रेखांकित करता है।

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Important Points

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Practice MCQ Questions (56 questions)

Q1. What type of thermometer might be available in a school laboratory?

Q2. What is the liquid in the laboratory thermometer used for?

Q3. What scale is marked on the laboratory thermometer?

Q4. What happens to the liquid column with a change in temperature?

Q5. What is the temperature range of the laboratory thermometer described?

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Tough Words (Glossary)

Measurement

Meaning: The process of finding the size, amount, or degree of something

अर्थ: मापन

"Accurate measurement is important in science."

Feverish

Meaning: Feeling or showing symptoms of fever

अर्थ: बुखार जैसा

"He looked feverish after playing outside."

Thermometer

Meaning: An instrument used to measure temperature

अर्थ: तापमापी

"She checked his temperature with a thermometer."

Almirah

Meaning: A cupboard or wardrobe

अर्थ: अलमारी

"She kept the thermometer in the almirah."

Relief

Meaning: A feeling of comfort after worry or pain

अर्थ: राहत

"It was a relief to know he had no fever."

Uniform

Meaning: Special clothes worn by members of the same group

अर्थ: वर्दी

"He changed his school uniform."

Rely

Meaning: To depend on with confidence

अर्थ: भरोसा करना

"We cannot always rely on our sense of touch."

Infer

Meaning: To reach a conclusion from evidence

अर्थ: निष्कर्ष निकालना

"What do you infer from this observation?"

Reliable

Meaning: Dependable, trustworthy

अर्थ: विश्वसनीय

"A thermometer gives reliable temperature readings."

Device

Meaning: A tool or machine made for a purpose

अर्थ: उपकरण

"A thermometer is a device to measure temperature."

Clinical

Meaning: Related to medical treatment of patients

अर्थ: चिकित्सीय

"A clinical thermometer measures body temperature."

Laboratory

Meaning: A place where scientific experiments are done

अर्थ: प्रयोगशाला

"We used a laboratory thermometer in class."

Digital

Meaning: Displaying information in numbers or digits

अर्थ: डिजिटल

"Digital thermometers are easy to read."

Celsius

Meaning: A scale of measuring temperature

अर्थ: सेल्सियस

"Water boils at 100 °C on the Celsius scale."

Mercury

Meaning: A heavy, silver liquid metal

अर्थ: पारा

"Old thermometers used mercury."

Toxic

Meaning: Poisonous and harmful

अर्थ: विषैला

"Mercury is highly toxic."

Dispose

Meaning: To get rid of

अर्थ: निपटाना

"Mercury is hard to dispose of safely."

Sensor

Meaning: A device that detects changes

अर्थ: संवेदक

"Digital thermometers use heat sensors."

Infrared

Meaning: Light waves not visible to the eye, used in sensing heat

अर्थ: अवरक्त

"Infrared thermometers can measure from a distance."

Contact

Meaning: Touching something physically

अर्थ: संपर्क

"Non-contact thermometers work without contact."

Average

Meaning: A typical value found by dividing the total by the number of items

अर्थ: औसत

"The normal body temperature is an average value."

Factor

Meaning: A circumstance influencing a result

अर्थ: कारक

"Age is a factor affecting body temperature."

Variation

Meaning: A change or difference

अर्थ: भिन्नता

"There was variation in the readings."

Armpit

Meaning: The hollow under the arm

अर्थ: बगल

"Temperature can be measured in the armpit."

Equivalent

Meaning: Equal in value

अर्थ: समान

"37 °C is equivalent to 98.6 °F."

Fahrenheit

Meaning: A scale of measuring temperature

अर्थ: फारेनहाइट

"Body temperature is often measured in Fahrenheit."

Kelvin

Meaning: The SI unit of temperature

अर्थ: केल्विन

"Scientists use Kelvin in experiments."

Abbreviation

Meaning: Short form of a word

अर्थ: संक्षिप्त रूप

"K is the abbreviation for Kelvin."

Pulse

Meaning: The regular beating of the heart felt in the body

अर्थ: नाड़ी

"Doctors check pulse rate for health."

Indicator

Meaning: Something that shows the state of something

अर्थ: संकेतक

"Pulse is an indicator of fever."

Sealed

Meaning: Closed tightly so that nothing can enter or escape

अर्थ: सील किया हुआ

"The thermometer tube is sealed."

Bulb

Meaning: The rounded part at the end of a thermometer

अर्थ: गोला

"The bulb contains mercury or alcohol."

Column

Meaning: A narrow vertical structure

अर्थ: स्तंभ

"The mercury column rises with heat."

Division

Meaning: A part or section of a scale

अर्थ: विभाजन

"One division on the thermometer equals 1 °C."

Range

Meaning: The difference between highest and lowest values

अर्थ: सीमा

"The thermometer range is 0 °C to 100 °C."

Constant

Meaning: Not changing

अर्थ: निरंतर

"Boiling water stays at a constant temperature."

Approximate

Meaning: Close to the actual value but not exact

अर्थ: लगभग

"The wall thermometer shows approximate temperature."

Forecast

Meaning: A prediction of future conditions

अर्थ: पूर्वानुमान

"Weather forecasts use temperature data."

Reliance

Meaning: Dependence on something

अर्थ: निर्भरता

"India reduced reliance on foreign instruments."

Renewable

Meaning: Able to be replaced naturally

अर्थ: नवीकरणीय

"Solar power is a renewable energy."

Instrument

Meaning: A tool or device for a purpose

अर्थ: यंत्र

"A thermometer is a scientific instrument."

Toxicity

Meaning: The quality of being poisonous

अर्थ: विषाक्तता

"The toxicity of mercury is dangerous."

Immersed

Meaning: Put into a liquid

अर्थ: डूबा हुआ

"The thermometer was immersed in water."

Setup

Meaning: An arrangement prepared for an activity

अर्थ: प्रयोग व्यवस्था

"The teacher prepared the experiment setup."

Parameter

Meaning: A measurable factor

अर्थ: मानदंड

"Air temperature is a weather parameter."

Weather

Meaning: The state of the atmosphere

अर्थ: मौसम

"The weather is hot today."

Solar

Meaning: Related to the sun

अर्थ: सौर

"Solar energy is widely used now."

Invented

Meaning: Created or designed something for the first time

अर्थ: आविष्कृत

"She invented new instruments."

Explored

Meaning: Searched or studied carefully

अर्थ: अन्वेषण किया

"She explored renewable energy sources."

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Ch 6: Materials Around Us

Ch 8: A Journey Through States of Water

NCERT Solutions Class 6 Science Chapter 7 – Temperature And Its Measurement

Chapter Introduction

Watch Video Lecture

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Important Points

Practice MCQ Questions (56 questions)

Q1. What type of thermometer might be available in a school laboratory?

Q2. What is the liquid in the laboratory thermometer used for?

Q3. What scale is marked on the laboratory thermometer?

Q4. What happens to the liquid column with a change in temperature?

Q5. What is the temperature range of the laboratory thermometer described?

Q6. What is the smallest value that the given laboratory thermometer can read?

Q7. How many divisions are there between 0°C and 10°C on the laboratory thermometer?

Q8. What is the correct way to immerse the thermometer in water?

Q9. Where should the thermometer be held when measuring temperature?

Q10. What should the position of the eye be when reading the thermometer?

Q11. What happens to the liquid column when you take the thermometer out of water?

Q12. When should the temperature be read using a laboratory thermometer?

Q13. Why is it necessary to look carefully at the thermometer before use?

Q14. Why should the bulb of the thermometer not touch the bottom of the beaker?

Q15. How should the thermometer be held to ensure accurate measurement?

Q16. What should be avoided while measuring temperature with a laboratory thermometer?

Q17. Why does the liquid column fall when the thermometer is taken out of water?

Q18. What might cause differences in temperature readings among students?

Q19. What should you observe while measuring water temperature with a laboratory thermometer?

Q20. Where might you see thermometers that measure air temperature?

Q21. What do weather reports mention besides air temperature?

Q22. Does the maximum and minimum air temperature stay the same every day?

Q23. Why is air temperature an important weather parameter?

Q24. Where is air temperature monitored globally?

Q25. What is the use of data gathered on air temperature?

Q26. What did Phiban use to check Lambok's temperature?

Q27. Where do Lambok and Phiban live?

Q28. What was the condition of Lambok when he came home?

Q29. What did Phiban do before measuring the temperature?

Q30. What did Phiban ask Lambok to do after finding his temperature normal?

Q31. How do we typically realize the difference between hot and cold?

Q32. What is the reliable measure of hotness or coldness?

Q33. Which device is used to measure temperature?

Q34. What is the unit of temperature on the Celsius scale?

Q35. What type of thermometer is used to measure human body temperature?

Q36. What should be done before using a digital clinical thermometer?

Q37. Where is the thermometer placed when measuring body temperature?

Q38. What indicates the completion of temperature measurement in a digital thermometer?

Q39. What is the normal temperature of a healthy human body in °C?

Q40. What might affect a person's body temperature?

Q41. What is the range of human body temperature in °C?

Q42. Where can the digital thermometer be placed for small children or elderly?

Q43. How much lower is the temperature when measured in the armpit?

Q44. What is the unit of temperature on the Fahrenheit scale?

Q45. What is the Celsius equivalent of 98.6 °F?

Q46. Which temperature scale is most commonly used in scientific work?

Q47. What is the SI unit of temperature?

Q48. Who developed the Celsius scale?

Q49. Who developed the Fahrenheit scale?

Q50. Who developed the Kelvin scale?

Q51. Which scale is not commonly used in scientific studies anymore?

Q52. What should be done after using a digital thermometer?

Q53. Which thermometer measures body temperature without contact?

Q54. What is the average normal human body temperature?

Q55. Why are mercury thermometers being phased out?

Q56. How was fever detected before thermometers?