NCERT Solutions for Class 6 Science Curiosity Chapter 7: NCERT Solutions for Class 6 Science Curiosity Chapter 7 offer a detailed explanation of all key concepts, helping students grasp the fundamentals effectively. These solutions are aligned with the latest exam pattern, making them a valuable tool for exam preparation.
NCERT Solutions for Class 6 Science Chapter 7, which is part of the updated NCERT syllabus, includes conceptual questions, activities, and application-based problems designed to build scientific thinking.
Practicing these solutions regularly along with previous year papers ensures better performance in school exams. These NCERT solutions make learning engaging, support revision, and help students develop a clear understanding of important science topics.
NCERT Solutions for Class 6 Science Curiosity Chapter 7 Temperature and Measurement
Chapter 7 of Class 6 Science Curiosity – “Temperature and Its Measurement” introduces students to the concept of temperature and how it is measured in daily life. The chapter explains the difference between hot and cold objects and how heat flows from a hotter object to a colder one.
It covers the use of thermometers, especially laboratory and clinical thermometers, and how to read them accurately. Students learn about the Celsius and Fahrenheit scales and the proper methods for measuring temperature. This chapter helps build observation skills and scientific thinking, forming a strong base for understanding heat and related concepts in higher classes.
NCERT Solutions for Class 6 Science Curiosity Chapter 7 Question Answers
Below we have provided the NCERT Solutions for Class 6 Science Curiosity Chapter 7 question answers – Temperature and Its Measurement.
These solutions include answers to all in-text questions, activities, and exercises from the chapter. Designed as per the latest CBSE Class 6 syllabus and exam pattern, they help students build a strong understanding of key concepts and prepare effectively for exams.
Activity 7.1: Let us investigate
Write down your predictions.
— What will my right hand feel on dipping it in B?
It will feel cool.
— What will my left hand feel on dipping it in B?
It will feel warm.
Now, conduct the activity and write your observations.
The right hand felt the water in container B as cool, while the left hand felt it as warm.
Inference: Our sense of touch cannot be relied upon to judge temperature correctly.
Activity 7.2: Let us measure
Use a digital thermometer to measure the temperature of 10 persons.
(Record temperatures in Table 7.1 as per actual measurement. Here's a sample format.)
|
S. no.
|
Name
|
Temperature (°C)
|
|
1.
|
Ankit
|
36.8
|
|
2.
|
Riya
|
37.1
|
|
...
|
...
|
...
|
|
10.
|
Zoya
|
36.9
|
Note: You can record temperatures at different times for better observation.
Activity 7.3: Let us observe
— What is the lowest temperature it can measure?
–10 °C
— What is the highest temperature it can measure?
110 °C
— So, the range of this thermometer is
–10 °C to 110 °C
Activity 7.4: Let us observe and calculate
— Temperature difference between two bigger marks:
10 °C
— Number of divisions between these marks:
10
— Temperature per small division:
1 °C
— Smallest value this thermometer can read is:
1 °C
Activity 7.5: Let us measure
What is the temperature of water measured by you?
(Sample answer) The temperature measured was 45 °C.
Observation: As soon as the thermometer is taken out of the water, the reading starts to fall, so it must be read while it is immersed.
Activity 7.6: Let us compare
|
Name
|
Temperature of Boiling Water (°C)
|
|
Phiban
|
97.8
|
|
Shemphang
|
98.0
|
|
Onestar
|
97.9
|
|
Kloi
|
98.0
|
|
Bandarisha
|
98.1
|
Why are there differences in their readings?
Possible reasons include not following proper thermometer reading technique, different timing of measurement, or errors in holding the thermometer.
Activity 7.7: Let us analyse
(Sample Table format)
|
S. no.
|
Date
|
Max Temp (°C)
|
Min Temp (°C)
|
|
1.
|
1 June
|
38
|
27
|
|
...
|
...
|
...
|
...
|
|
10.
|
10 June
|
39
|
28
|
Analysis: The temperature varied across the 10 days due to changing weather conditions.
Let Us Enhance Our Learning
1. The normal temperature of a healthy human being is close to
(i) 98.6 °C
(ii) 37.0 °C
(iii) 32.0 °C
(iv) 27.0 °C
Answer (ii) 37.0 °C
2. 37 °C is the same temperature as
(i) 97.4 °F
(ii) 97.6 °F
(iii) 98.4 °F
(iv) 98.6 °F
Answer (iv) 98.6 °F
3. Fill in the blanks:
(i) The hotness or coldness of a system is determined by its..........
.
(ii) The temperature of ice-cold water cannot be measured
by a .................. thermometer.
(iii) The unit of temperature is degree................
Answer
(i) temperature
(ii) clinical
(iii) Celsius
4. The range of a laboratory thermometer is usually
(i) 10 °C to 100 °C
(ii) –10 °C to 110 °C
(iii) 32 °C to 45 °C
(iv) 35 °C to 42 °C
Answer (ii) –10 °C to 110 °C
5. Who followed the correct method?
(iii) Student 3 – because the thermometer is held vertically and immersed properly.
6. Colour the red column
(You need to colour up to the correct temperatures: 14 °C, 17 °C, and 7.5 °C)
7. Observe the part of thermometer shown in Fig. 7.8
(i) What type of thermometer is it?
Laboratory thermometer
(ii) What is the reading of the thermometer?
37.0 °C
(iii) What is the smallest value that this thermometer can measure?
1 °C
8. Why is a laboratory thermometer not used for measuring body temperature?
Because its range is higher and it is not designed to be used inside the human body safely.
9. Vaishnavi’s Temperature Record
|
Day
|
Highest Temp
|
|
Day 1
|
40.0 °C
|
(i) Vaishnavi’s highest recorded temperature:
40.0 °C
(ii) Day and time of highest temperature:
Day One, 7 pm
(iii) Day her temperature returned to normal:
Day Three
10. Which thermometer to use for 22.5 °C?
Thermometer (a) – because it covers the appropriate range and can show 0.5 °C accuracy.
11. The temperature shown by the thermometer is
(i) 28.0 °C
(ii) 27.5 °C
(iii) 26.5 °C
(iv) 25.3 °C
Answer (ii) 27.5 °C
12. A lab thermometer has 50 divisions between 0 °C and 100 °C. What does each division measure?
Each division measures 2 °C.
13. Draw the scale of a thermometer in which smallest division is 0.5 °C between 10 °C and 20 °C
(Draw a vertical line with 20 divisions between 10 °C and 20 °C, each showing 0.5 °C.)
14. Komal says she has 101 degrees fever. Which scale?
She means it in Fahrenheit scale, as 101 °F is commonly used in the U.S. and for clinical purposes.
Class 6 Science Curiosity Chapter 7 Extra Questions
Below we have provided extra questions for Class 6 Science Curiosity Chapter 7 – Temperature and Its Measurement. These questions will help students test their understanding, revise key concepts, and prepare confidently for exams and classroom discussions.
-
What is the device used to measure the temperature of a human body called?
Answer: A clinical thermometer.
-
Name two types of thermometers commonly used.
Answer: Clinical thermometer and laboratory thermometer.
-
What is the SI unit of temperature?
Answer: Kelvin (K).
-
True/False: The temperature of boiling water can be measured using a clinical thermometer.
Answer: False.
-
Fill in the blank: Temperature in a thermometer is measured using a _______ scale in most scientific work.
Answer: Kelvin.
-
Why is it important to read a thermometer while it is still in contact with the object whose temperature is being measured?
Answer: Because once the thermometer is removed, the temperature starts to change, and the reading may no longer be accurate.
-
What are the precautions to be taken while using a digital clinical thermometer? Mention any two.
Answer:
-
What is the normal temperature of a healthy human body on the Fahrenheit scale?
Answer: 98.6 °F.
-
What is the purpose of the bulb in a laboratory thermometer?
Answer: The bulb contains the liquid (like mercury or alcohol) that expands and rises in the tube when heated, indicating temperature.
-
Fill in the blank: One small division on a laboratory thermometer often represents ______ °C.
Answer: 1 °C.
-
Why is mercury no longer used in clinical thermometers?
Answer: Because mercury is a toxic substance and is harmful if the thermometer breaks.
-
What happens to the reading of a thermometer if you take it out of hot water before noting it down?
Answer: The temperature reading starts to drop, and the measurement may become inaccurate.
-
True/False: The Fahrenheit scale is still widely used in scientific work today.
Answer: False.
-
What is the temperature range of a laboratory thermometer generally?
Answer: –10 °C to 110 °C.
-
Compare the use of a digital thermometer and an infrared thermometer.
Answer:
-
A digital thermometer measures temperature by contact, usually under the tongue or armpit.
-
An infrared thermometer measures temperature without touching the body, using heat sensors, and is useful in preventing disease spread.
NCERT Solutions for Class 6 Science Curiosity Chapter 7 PDF Download
Below are the NCERT Solutions for Class 6 Science Curiosity Chapter 7 Temperature and Its Measurement PDF download. This PDF contains comprehensive answers to all questions, activities, and exercises from the chapter, based on the latest CBSE syllabus.
It is a valuable resource for students to revise important concepts, understand temperature scales, and practice scientific methods of measurement. Download the PDF below to study offline and strengthen your exam preparation with well-structured, easy-to-understand solutions.
