Chapter 7. Temperature and its Measurement Class 6 Science Curiosity Solutions English Medium-40 Important MCQs with Answers

NCERT Solutions Class 6 Science Curiosity English Medium

Chapter 7. Temperature and its Measurement

Topic: 40 Important MCQs with Answers

Chapter 7. Temperature and its Measurement

This MCQ practice set is prepared according to the latest CBSE pattern and is based on the NCERT Curiosity textbook. These questions help students strengthen conceptual understanding, improve analytical thinking, and prepare effectively for school examinations and competency-based assessments.

40 Important MCQs with Answer Key

Choose the most appropriate answer for each question. Read every question carefully before selecting the correct option.

1. Temperature is the measure of the ________ of a body.

(A) weight
(B) size
(C) hotness or coldness
(D) colour

2. Which instrument is used to measure temperature?

(A) Barometer
(B) Thermometer
(C) Hygrometer
(D) Ammeter

3. Which thermometer is used to measure human body temperature?

(A) Laboratory thermometer
(B) Clinical thermometer
(C) Room thermometer
(D) Weather thermometer

4. The normal body temperature of a healthy adult is about

(A) 35°C
(B) 36°C
(C) 37°C
(D) 40°C

5. 37°C is equal to

(A) 96.8°F
(B) 97.2°F
(C) 98.6°F
(D) 100°F

6. Which temperature scale is commonly used in India?

(A) Kelvin
(B) Celsius
(C) Fahrenheit
(D) Rankine

7. The SI unit of temperature is

(A) Celsius
(B) Fahrenheit
(C) Kelvin
(D) Degree

8. The symbol of kelvin is

(A) °K
(B) K
(C) k
(D) °k

9. Which thermometer became widely used during the COVID-19 pandemic?

(A) Mercury thermometer
(B) Infrared thermometer
(C) Alcohol thermometer
(D) Laboratory thermometer

10. Digital thermometers measure temperature using

(A) magnets
(B) heat sensors
(C) mirrors
(D) springs

11. Our sense of touch cannot always judge temperature correctly because

(A) skin has no nerves
(B) it depends on previous exposure to hot or cold objects
(C) objects always change temperature
(D) air changes colour

12. Which of the following is safer than a mercury thermometer?

(A) Alcohol thermometer
(B) Digital thermometer
(C) Glass rod
(D) Compass

13. Mercury thermometers are being replaced because mercury is

(A) expensive
(B) colourful
(C) poisonous
(D) heavy

14. A laboratory thermometer is mainly used for

(A) measuring body temperature
(B) measuring temperature during experiments
(C) measuring rainfall
(D) measuring pressure

15. The usual range of a laboratory thermometer is

(A) 35°C–42°C
(B) –10°C to 110°C
(C) 0°C–50°C
(D) 20°C–60°C

16. While measuring temperature with a laboratory thermometer, the bulb should

(A) touch the bottom of the container
(B) touch the side of the container
(C) remain immersed without touching the container
(D) remain outside the liquid

17. A laboratory thermometer should be held

(A) horizontally
(B) vertically
(C) upside down
(D) tilted

18. The temperature should be read

(A) after removing the thermometer from the liquid
(B) while the thermometer is immersed
(C) after shaking it
(D) after drying it

19. Eye level should be in line with the liquid column to avoid

(A) friction
(B) evaporation
(C) incorrect reading
(D) melting

20. Which liquid is commonly used in many laboratory thermometers?

(A) Petrol
(B) Alcohol
(C) Milk
(D) Oil

21. The average normal human body temperature is based on

(A) one person
(B) many healthy people
(C) children only
(D) doctors only

22. Human body temperature normally does not fall below

(A) 20°C
(B) 25°C
(C) 35°C
(D) 37°C

23. Human body temperature normally does not rise above

(A) 39°C
(B) 40°C
(C) 41°C
(D) 42°C

24. Temperature measured in the armpit is usually

(A) higher than body temperature
(B) equal to boiling point
(C) slightly lower than body temperature
(D) always 37°C

25. Fahrenheit temperature is written as

(A) K
(B) °F
(C) °C
(D) F

26. Celsius temperature is written as

(A) C
(B) °C
(C) K
(D) °K

27. Which temperature scale does not use the degree symbol?

(A) Celsius
(B) Fahrenheit
(C) Kelvin
(D) None

28. Weather reports usually mention

(A) body temperature
(B) boiling point
(C) maximum and minimum air temperature
(D) water temperature only

29. Room temperature is measured using a

(A) room thermometer
(B) clinical thermometer
(C) weighing balance
(D) rain gauge

30. Which scientist is popularly known as the 'Weather Woman of India'?

(A) Kalpana Chawla
(B) Anna Mani
(C) Janaki Ammal
(D) Asima Chatterjee

31. Air temperature is important for

(A) weather forecasting
(B) measuring mass
(C) measuring length
(D) measuring speed

32. The boiling point of water remains constant while

(A) boiling continues
(B) cooling starts
(C) freezing occurs
(D) stirring stops

33. The temperature of melting ice remains

(A) continuously increasing
(B) continuously decreasing
(C) constant while melting
(D) equal to body temperature

34. Which thermometer should never be held by its bulb?

(A) Clinical thermometer
(B) Laboratory thermometer
(C) Infrared thermometer
(D) Digital watch

35. Before using a digital thermometer, its tip should be

(A) painted
(B) heated
(C) washed and cleaned
(D) covered with paper

36. The main purpose of cleaning a thermometer is to

(A) improve colour
(B) prevent spread of germs
(C) increase temperature
(D) reduce weight

37. Temperature is compared using

(A) standard scales
(B) colours
(C) sound
(D) smell

38. Which of the following is NOT a temperature scale?

(A) Celsius
(B) Kelvin
(C) Fahrenheit
(D) Pascal

39. Which activity proves that our sense of touch is unreliable?

(A) Measuring rainfall
(B) Keeping one hand in warm water and the other in cold water before placing both in normal water
(C) Measuring length
(D) Measuring weight

40. The best conclusion from this chapter is that

(A) touch is always accurate
(B) thermometers provide reliable temperature measurements
(C) only doctors use thermometers
(D) Celsius is the only temperature scale

Answer Key

1-C, 2-B, 3-B, 4-C, 5-C, 6-B, 7-C, 8-B, 9-B, 10-B,
11-B, 12-B, 13-C, 14-B, 15-B, 16-C, 17-B, 18-B, 19-C, 20-B,
21-B, 22-C, 23-D, 24-C, 25-B, 26-B, 27-C, 28-C, 29-A, 30-B,
31-A, 32-A, 33-C, 34-B, 35-C, 36-B, 37-A, 38-D, 39-B, 40-B.

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