Class 6 Science Chapter 7 MCQs – Temperature and Its Measurement
Class 6 Science Chapter 7 MCQs for “Temperature and Its Measurement” (based on NCERT textbook Curiosity ).
MCQ with Answers for Practice – Chapter 7 – Temperature and Its Measurement
This includes All types of MCQs normally asked in school exams, tests, and NCERT exercises.
MCQs – Chapter 7
Temperature and its Measurement
(Complete Question MCQ)
1. Which sense organ is used to feel whether something is hot or cold?
a) Eyes
b) Skin
c) Nose
d) Ears
Answer: b) Skin
2. Why is the sense of touch not reliable for measuring temperature?
a) The skin becomes too warm
b) Touch gives incorrect judgement
c) Hands slip in water
d) Water evaporates
Answer: b) Touch gives incorrect judgement
3. A reliable measure of how hot or cold an object is called:
a) Heat
b) Temperature
c) Humidity
d) Pressure
Answer: b) Temperature
4. Which device is used to measure temperature?
a) Barometer
b) Thermometer
c) Hygrometer
d) Speedometer
Answer: b) Thermometer
5. Which thermometer is used to measure human body temperature?
a) Laboratory thermometer
b) Digital clinical thermometer
c) Infrared hygrometer
d) Room thermometer
Answer: b) Digital clinical thermometer
6. Digital thermometers run on:
a) Petrol
b) Gas
c) Batteries
d) Solar energy
Answer: c) Batteries
7. The normal temperature of a healthy human adult is:
a) 34 °C
b) 37 °C
c) 42 °C
d) 28 °C
Answer: b) 37 °C
8. 37 °C is equal to how many °F?
a) 98.6 °F
b) 95 °F
c) 86.2 °F
d) 100.0 °F
Answer: a) 98.6 °F
9. Which of the following is an extremely toxic substance used earlier in thermometers?
a) Iron
b) Mercury
c) Aluminium
d) Plastic
Answer: b) Mercury
10. Non-contact thermometers used during COVID-19 were:
a) Digital hygrometers
b) Infrared thermometers
c) Room heaters
d) Pressure meters
Answer: b) Infrared thermometers
11. The unit of temperature in the Celsius scale is:
a) °K
b) C
c) k
d) °C
Answer: d) °C
12. The SI unit of temperature is:
a) Degree Celsius
b) Degree Fahrenheit
c) Kelvin
d) Joule
Answer: c) Kelvin
13. Temperature in Kelvin scale is obtained by adding 273.15 to:
a) Fahrenheit
b) Celsius
c) Heat
d) Pressure
Answer: b) Celsius
14. A clinical thermometer cannot measure:
a) Human body temperature
b) Temperature of hot milk
c) Temperature of hot tea
d) Boiling water
Answer: d) Boiling water
15. The typical range of a clinical thermometer is:
a) 0 °C to 110 °C
b) –10 °C to 110 °C
c) 35 °C to 42 °C
d) 32 °C to 45 °C
Answer: c) 35 °C to 42 °C
16. Laboratory thermometers usually have a range:
a) 10 °C to 100 °C
b) –10 °C to 110 °C
c) 35 °C to 42 °C
d) 20 °C to 40 °C
Answer: b) –10 °C to 110 °C
17. The liquid used in a laboratory thermometer is usually:
a) Petrol
b) Kerosene
c) Colored alcohol or mercury
d) Water
Answer: c) Colored alcohol or mercury
18. When reading a thermometer, the eye should be:
a) Above the level of the liquid
b) Below the level of the liquid
c) Slanted
d) In line with the liquid level
Answer: d) In line with the liquid level
19. The thermometer should always be held:
a) Horizontally
b) Vertically
c) Upside down
d) Flat on a table
Answer: b) Vertically
20. The bulb of a laboratory thermometer should not touch the bottom of the beaker because:
a) It will break
b) It gives an incorrect reading
c) It melts the glass
d) It increases temperature
Answer: b) It gives an incorrect reading
21. Temperature should be read:
a) After removing thermometer from water
b) While the thermometer is still in water
c) After shaking it
d) After cooling
Answer: b) While the thermometer is still in water
22. The smallest division of a thermometer depends on:
a) Temperature of water
b) Number of small markings
c) Width of the bulb
d) Size of the beaker
Answer: b) Number of small markings
23. If the temperature difference between two major marks is 10 °C and there are 10 small divisions, each division equals:
a) 0.5 °C
b) 1 °C
c) 2 °C
d) 5 °C
Answer: b) 1 °C
24. The temperature of boiling water recorded by students differed mainly because:
a) Thermometers were faulty
b) They all measured wrongly
c) They did not follow correct reading method
d) They used different liquids
Answer: c) They did not follow correct reading method
25. A room thermometer is used to measure:
a) Body temperature
b) Temperature of boiling water
c) Air/room temperature
d) Temperature of ice
Answer: c) Air/room temperature
26. Which temperature varies during the day due to weather changes?
a) Body temperature
b) Air temperature
c) Soil temperature
d) Boiling point
Answer: b) Air temperature
27. Anna Mani was known as:
a) Iron Woman of India
b) Weather Woman of India
c) Science Mother of India
d) Thermometer Lady
Answer: b) Weather Woman of India
28. Which scale is not commonly used in scientific work now?
a) Kelvin
b) Celsius
c) Fahrenheit
d) All of these
Answer: c) Fahrenheit
29. Absolute zero is equal to:
a) –273.15 °C
b) –100 °C
c) 0 °C
d) 273 °C
Answer: a) –273.15 °C
30. The temperature of a healthy child is usually:
a) Lower than adults
b) Higher than adults
c) Equal to adults
d) Zero
Answer: b) Higher than adults
31. The temperature reading of Vaishnavi on Day One at 7 pm was:
a) 38 °C
b) 39 °C
c) 40 °C
d) 37 °C
Answer: c) 40 °C
32. A laboratory thermometer is not used for body temperature because:
a) It is too long
b) It breaks easily
c) It has no kink
d) It has mercury
Answer: c) It has no kink
33. The column of liquid in a thermometer rises because:
a) Bulb expands
b) Liquid inside expands on heating
c) Glass expands
d) Air bubbles rise
Answer: b) Liquid inside expands on heating
34. If a thermometer has 50 divisions between 0 °C and 100 °C, each division measures:
a) 5 °C
b) 2 °C
c) 1 °C
d) 0.5 °C
Answer: b) 2 °C
35. Komal says she has fever of 101 degrees. She means:
a) 101 °C
b) 101 K
c) 101 °F
d) 101 J
Answer: c) 101 °F
36. The level of the liquid in a thermometer falls when:
a) The bulb is put in hot water
b) Temperature decreases
c) Pressure increases
d) Bulb is shaken
Answer: b) Temperature decreases
37. The liquid in thermometers should be:
a) Sticky and opaque
b) Transparent and uniformly expanding
c) Cheap and solid
d) Heavy and unstable
Answer: b) Transparent and uniformly expanding
38. Which of these remains constant during melting of ice?
a) Pressure
b) Temperature
c) Volume
d) Weight
Answer: b) Temperature
39. Which act signals the completion of reading in digital thermometers?
a) Shaking
b) Blinking light or beep
c) Turning red
d) Vibrating
Answer: b) Blinking light or beep
40. Which thermometer can measure temperature from a distance?
a) Digital
b) Laboratory
c) Infrared
d) Mercury
Answer: c) Infrared