Temperature and Its Measurement Class 6 Science MCQ Questions with Answers | CBSE Curiosity Book Chapter 7

Are you looking for Class 6 Science Chapter 7 – Temperature and Its Measurement MCQ Questions with Answers? You are in the right place! These multiple choice questions are based on the CBSE Curiosity Book and help students practice important concepts and prepare effectively for exams.

These MCQs are designed to enhance your understanding and boost your confidence. You can also use them for class tests, school assessments, or self-practice. Let’s begin the quiz!

Class 6 Science Chapter 7: Temperature and Its Measurement MCQ Questions with Answers

Question 1.
Which of the following is a reliable way to judge if an object is hot or cold?
(a) Touching with our hands
(b) Measuring with a thermometer
(c) Observing colour
(d) Guessing from surroundings

Show Answer

Answer: (b) Measuring with a thermometer
Explanation: Our sense of touch can be misleading, but a thermometer gives accurate measurement of temperature.

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Question 2.
The device used to measure temperature is called:
(a) Barometer
(b) Thermometer
(c) Hygrometer
(d) Ammeter

Show Answer

Answer: (b) Thermometer
Explanation: A thermometer is designed to measure temperature, unlike barometer (pressure) or hygrometer (humidity).

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Question 3.
Which type of thermometer is used to measure human body temperature?
(a) Laboratory thermometer
(b) Room thermometer
(c) Clinical thermometer
(d) Alcohol thermometer

Show Answer

Answer: (c) Clinical thermometer
Explanation: Clinical thermometers are designed for 35 °C–42 °C, suitable for body temperature measurement.

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Question 4.
Why are mercury thermometers being replaced by digital thermometers?
(a) Mercury is costly
(b) Mercury is toxic and difficult to dispose
(c) Digital thermometers look modern
(d) Mercury does not expand on heating

Show Answer

Answer: (b) Mercury is toxic and difficult to dispose
Explanation: Mercury is hazardous if spilled. Digital thermometers are safe and easy to use.

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Question 5.
The normal body temperature of a healthy human adult is taken as:
(a) 35.0 °C
(b) 37.0 °C
(c) 39.0 °C
(d) 42.0 °C

Show Answer

Answer: (b) 37.0 °C
Explanation: The average human body temperature is 37 °C (98.6 °F).

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Question 6.
The Fahrenheit equivalent of 37 °C is:
(a) 97.4 °F
(b) 97.6 °F
(c) 98.4 °F
(d) 98.6 °F

Show Answer

Answer: (d) 98.6 °F
Explanation: Using formula °F = (°C × 9/5) + 32, 37 °C = 98.6 °F.

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Question 7.
The SI unit of temperature is:
(a) Celsius
(b) Kelvin
(c) Fahrenheit
(d) Degree

Show Answer

Answer: (b) Kelvin
Explanation: Kelvin (K) is the SI unit of temperature and does not use a degree sign.

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Question 8.
Which thermometer has a range from –10 °C to 110 °C?
(a) Clinical thermometer
(b) Laboratory thermometer
(c) Room thermometer
(d) Digital thermometer

Show Answer

Answer: (b) Laboratory thermometer
Explanation: Laboratory thermometers have a wider range useful for experiments.

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Question 9.
What is the smallest value that a typical laboratory thermometer can measure?
(a) 0.1 °C
(b) 0.5 °C
(c) 1.0 °C
(d) 2.0 °C

Show Answer

Answer: (c) 1.0 °C
Explanation: A thermometer with 10 small divisions between 10 °C marks shows 1 °C per division.

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Question 10.
Why should the bulb of a laboratory thermometer not touch the bottom of the beaker?
(a) It gives lower readings
(b) It gives higher readings
(c) It may break
(d) Both (b) and (c)

Show Answer

Answer: (d) Both (b) and (c)
Explanation: Direct contact can heat unevenly and even break the thermometer.

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Question 11.
What is the value of absolute zero on the Celsius scale?
(a) –100 °C
(b) –200 °C
(c) –273 °C
(d) –300 °C

Show Answer

Answer: (c) –273 °C
Explanation: Absolute zero (0 K) is equivalent to –273.15 °C, the lowest possible temperature.

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Question 12.
Which type of thermometer was widely used during the COVID-19 pandemic?
(a) Mercury thermometer
(b) Digital thermometer
(c) Infrared thermometer
(d) Laboratory thermometer

Show Answer

Answer: (c) Infrared thermometer
Explanation: Infrared thermometers allowed safe, non-contact temperature checks.

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Question 13.
Which scientist is popularly called the “Weather Woman of India”?
(a) Kalpana Chawla
(b) Sunita Williams
(c) Anna Mani
(d) C.V. Raman

Show Answer

Answer: (c) Anna Mani
Explanation: She made significant contributions to meteorological instruments in India.

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Question 14.
Why should a laboratory thermometer be read while it is still in the liquid?
(a) To avoid parallax error
(b) To prevent breaking
(c) To avoid mercury falling back
(d) To get correct reading

Show Answer

Answer: (d) To get correct reading
Explanation: If removed, the mercury may drop giving inaccurate readings.

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Question 15.
Which of the following is a precaution while using a clinical thermometer?
(a) It should not be placed in hot water
(b) It should be washed before and after use
(c) It should not be shaken vigorously
(d) All of these

Show Answer

Answer: (d) All of these
Explanation: Proper care avoids damage and ensures accurate safe usage.

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Question 16.
Which thermometer is usually hung on walls to measure indoor air temperature?
(a) Clinical thermometer
(b) Room thermometer
(c) Laboratory thermometer
(d) Maximum-minimum thermometer

Show Answer

Answer: (b) Room thermometer
Explanation: Room thermometers are meant for ambient air measurements indoors.

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Question 17.
The boiling point of water is lower at hill stations because:
(a) Water is impure
(b) Air is cooler
(c) Atmospheric pressure is lower
(d) Water evaporates faster

Show Answer

Answer: (c) Atmospheric pressure is lower
Explanation: Lower air pressure reduces the boiling point of liquids.

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Question 18.
The temperature of a healthy child measured in the armpit is usually:
(a) Higher than oral reading
(b) Same as oral reading
(c) Slightly lower than oral reading
(d) Cannot be measured

Show Answer

Answer: (c) Slightly lower than oral reading
Explanation: Armpit readings are generally 0.5–1 °C lower than oral readings.

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Question 19.
Which type of liquid, other than mercury, is used in thermometers?
(a) Water
(b) Alcohol (coloured)
(c) Oil
(d) Glycerine

Show Answer

Answer: (b) Alcohol (coloured)
Explanation: Alcohol is safe, visible when coloured, and expands more than mercury.

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Question 20.
Which of the following statements is correct?
(a) Degree sign is written with Kelvin
(b) Mercury thermometers are completely safe
(c) 0 K is called absolute zero
(d) Clinical thermometer can measure boiling water

Show Answer

Answer: (c) 0 K is called absolute zero
Explanation: 0 K is the lowest possible temperature. Kelvin does not use degree sign.

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Conclusion

We hope these Class 6 Science MCQ Questions with Answers for Chapter 7 – Temperature and Its Measurement helped you in your preparation. Practice more to master the concepts and score higher in your exams.

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