NCERT Solutions for Class 6 Science Chapter 7 - Temperature and its Measurement

Download Class 6 Science Chapter 7 - Temperature and its Measurement Question Answers PDF

NCERT Solutions for Class 6 Science Chapter 7 - Temperature and its Measurement in PDF format allows learners the freedom and convenience of studying at any time on a mobile phone, tablet, or computer without the need for an internet connection. Using this PDF, it is easy and effective to revise such important topics as thermometers, body temperature measurement, andthe difference between clinical and laboratory thermometers. These Class 6 Science Chapter 7 - Temperature and its Measurement question answers are particularly helpful when it is time to do a quick revision or just before an exam, when students feel they have mastered the concepts taught in the chapter completely and do great with tests.

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NCERT Solutions for Class 6 Science Chapter 7

NCERT Solutions of Class 6 Science chapter 7 Temperature and its Measurement should be a core book of study material for anyone who studies the topic. It provides thorough answers to all textbook questions, which are simple and made easy to understand and how temperature is quantified and compared. All of the information on thermometers, temperature scales, and measurement methods has been explained in simple terms so that students can quickly revise or prepare to take an exam.

Question 1. The normal temperature of a healthy human being is close to.........

(i) 98.6 °C

(ii) 37.0 °C

(in) 32.0 °C

(iv) 27.0 °C

Answer: The answer is option (ii), the normal temperature of a healthy human being is close to 37.0 °C.

Question 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: The answer is option (iv)

Formula for Celsius to Fahrenheit conversion:

°F = (°C * 9/5) + 32

= °F = ( 37*9/5) + 32

= 66.6 + 32

= 98.6 °F

Question 3. Fill in the blanks:

3 (i) The hotness or coldness of a system is determined by its _________

Answer: Temperature, Temperature tells us how cold or hot an object is.

3 (ii) The temperature of ice-cold water cannot be measured by a _________ thermometer.

Answer: clinical, because a clinical thermometer is designed to measure human body temperature, which ranges from 35°C to 42°C. Ice-cold water has a temperature around 0°C, which is below the lower limit of a clinical thermometer.

3 (iii) The unit of temperature is degree _________

Answer: Celsius, The unit of temperature in the metric system is degrees Celsius (°C).

Question 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: Answer is option (ii) -10 °C to 110 °C.

The range of a laboratory thermometer is usually from –10°C to 110°C. This makes it suitable for experiments and scientific work where temperatures can vary a lot.

Question 5. Four students used a laboratory thermometer to measure the temperature of water as shown in the figure below

Who do you think followed the correct way for measuring temperature?

(i) Student 1

(ii) Student 2

(iii) Student 3

(iv) Student 4

Answer: Student 2, because the thermometer should be straight and should not touch the flask.

Question 6.

Colour to show the red column on the drawings of thermometers (Fig. below) as per the temperatures written below:

Answer: Red lines are marked alongside the respective thermometers for information.

For the first thermometer: 14 °C colour up to 2 small lines above mark 10, each small line indicates 2 degrees Celsius.

For the second thermometer: 17°C colour up to 7 small lines above mark 10, each small line indicates 1 degree Celsius.

For the third thermometer: 7.5°C colour up to 15 small lines above mark 0, each small line indicates 0.5 degrees Celsius.

Question 7. Observe the part of the thermometer shown in Fig. and answer the following questions:

(i) What type of thermometer is it?

(ii) What is the reading of the thermometer?

(in) What is the smallest value that this thermometer can measure?

Answer:

(i) This is a laboratory thermometer because the lowest mark on the thermometer is -10 °. The range of a laboratory thermometer is -10 °C to 110 °C.

(ii) The reading of the thermometer is 26 °C.

(iii) The thermometer can measure the smallest value of – 10°C because there are 10 small line marks between any 10-degree gap (0-10, 10-20, and so on) on the thermometer.

Question 8. A laboratory thermometer is not used to measure our body temperature. Give a reason.

Answer: A laboratory thermometer is not used to measure human body temperature because the lowest value of reading required to measure the human body temperature is 0.1 °C. If small markings of 0.1 °C are made on a range (-10 to 110°C) of a laboratory thermometer, the thermometer will be too long to handle for measuring human body temperature.

Question 9. Vaishnavi has not gone to school as she is ill. Her mother has kept a record of her body temperature for three days, as shown in the Table below

Table: Body temperature record of Vaishnavi

(i) What was Vaishnavi’s highest recorded temperature?

(ii) On which day and at what time was Vaishnavi’s highest temperature recorded?

(iii) On which day did Vaishnavi’s temperature return to normal?

Answer:

(i) Vaishnavi’s highest recorded temperature is 40.0 °C.

(ii) Vaishnavi’s highest temperature was recorded on day one, at 7 pm.

(iii) Vaishnavi’s temperature returns to normal on day three (The Temperature of a normal human body is always close to 37 °C).

Question 10. If you have to measure the temperature 22.5 °C, which of the following three thermometers will you use (Fig.)? Explain.

Answer: We will use thermometer (b). Because thermometer (b) has the markings on it to measure the smallest value of 0.5°C. Thermometer (a) can measure the smallest value of 1°C, thermometer (c) can measure the smallest value of 2°C.

Question 11. The temperature shown by the thermometer in Fig. is

(i) 28.0 °C

(ii) 27.5 °C

(iii) 26.5 °C

(iv) 25.3 °C

Answer: Answer is option (ii), 27.5 °C, we can see the red color on the thermometer. It is at the middle point between 25 and 30.

Question 12. A laboratory thermometer has 50 divisions between 0°C and 100°C. What does each division of this thermometer measure?

Answer: Given laboratory thermometer has a range from 0°C to 100°C with 50 divisions, so each division measures 2°C (we get this by 100/50).

Question 13. Draw the scale of a thermometer in which the smallest division reads 0.5 °C. You may draw only the portion between 10 °C and 20 °C.

Answer: The scale of a thermometer in which the smallest division reads 0.5 °C is given below.

Question 14. Komal tells you that she has a fever of 101 degrees. Does she mean it on the Celsius scale or the Fahrenheit scale?

Answer: She means the temperature on the Fahrenheit scale. Because the Human body temperature generally does not go below 35 °C or above 42 °C. The range of the Fahrenheit scale is between 95 degrees to 107.8 degrees.

Class 6 Science Chapter 7 - Temperature and its Measurement: Additional Questions

The additional questions of Class 6 Science Chapter 7 – Temperature and Its Measurement are crafted to give students extra practice beyond the textbook exercises. These class 6 science chapter 7 Temperature and its Measurement question answers help in understanding concepts such as measuring temperature, using thermometers, and understanding hot and cold in daily life. Solving them enhances analytical skills and builds confidence for exams and practical applications.

Q1: Explain the principle behind the Kelvin scale and its significance in scientific measurements.

Answer:

Kelvin scale is a method of measuring temperature, which is employed by scientists. It is unique in the sense that it begins with the lowest temperature known as absolute zero. Everything stops moving at this temperature known as 0 Kelvin (or 0 K), as there is no heat energy remaining. This is quite unlike the Celsius scale, where 0 ^oC is the freezing point of water.

The significance of the Kelvin scale lies in the fact that it assists scientists in measuring extremely cold or hot temperatures precisely. The difference between steps on the Kelvin and Celsius scales is equal; however, the Kelvin scale begins at zero, not at freezing water. In order to bring Celsius to Kelvin, simply add 273 to the Celsius temperature. For example, 25 °C is 298 K.

Q2: What did people use to detect fever before thermometers were developed?

Answer:

Prior to the invention of thermometers, people relied on their sense of touch in order to detect fever. They would place the hand or the wrist on the forehead of an individual to determine whether it was hotter than usual. Greek doctors such as Hippocrates thought that when the forehead was warm then it was likely that the individual had a fever. In some cases, individuals would also use other indicators such as sweating, shivering, or alterations in the behaviour of an individual to determine whether he or she had a fever. The approach to these methods was largely experiential since there was no means of measuring temperature accurately.

Q3: What is the difference between heat and temperature?

Answer:

Heat is a form of energy. It is the energy that transfers from one object to another due to the difference in temperature. As an example, when you pick a hot cup, the heat transfers into your hand. The unit of heat is referred to as the joule or calorie. Heat is dependent on the quantity and the speed of the particles of a substance.

Temperature, on the other hand, lets us know whether something is hot or cold. It is a measure of the average energy of the small particles within a substance. The temperature is expressed in degrees Celsius (°C), degrees Fahrenheit (°F) or Kelvin (K). Temperature does not depend on the quantity of the substance, unlike heat.

Class 6 Science Chapter 7 - Temperature and Its Measurement: Topics

In this chapter, students are introduced to temperature and its measurement by different thermometers. It makes them realise the distinction between warm and cold things, the kind of tools that are applied in measuring temperature, and the ways of applying them practically in laboratories and in everyday life.

7.1 Hot or Cold?

This topic assists students in making comparisons of objects in terms of their heat or coldness. It tells us how our touch does not always ensure the temperature. Therefore, there is a need to have a better way of measuring differences in heat.

7.2 Temperature

Here, students learn what temperature actually means — it is a measure of how hot or cold an object is. The topic also explains that temperature is measured in degrees Celsius (°C) and introduces the concept of temperature scales.

7.3 Measuring Temperature

This part explains the use of thermometers to physically measure temperature. It describes the simple components of a thermometer, which include the glass bulb, the glass tube, and the column, filled with mercury, and how to read it effectively.

7.4 Clinical thermometer

Students learn the clinical thermometer, which is utilised by doctors to measure body temperature. It will tell about the range of temperatures when it can be used (35 °C to 42 °C), as well as precautions that one has to observe to maintain safety and precision of readings with it.

7.5 Laboratory thermometer

This topic discusses laboratory thermometers, which are used to indicate the temperature of substances when conducting experiments. It explains more varieties of these thermometers and the differences between them and clinical thermometers.

7.6 Air temperature

This part describes the equipment used to measure the temperature of air, like a maximum or minimum thermometer. The effect of air temperature on weather and its significance in prediction is also discussed.

Approach to Solve Questions of Class 6 Science Chapter 7 - Temperature and its Measurement

The NCERT Class 6 Science Chapter 7 - Temperature and Its Measurement presents the students with the idea of temperature, various kinds of thermometers, and their applications in everyday life. The students must grasp the concepts clearly rather than learn them by heart in order to respond to the questions successfully. The step-by-step methodology will be as follows:

• Read and Understand the Chapter: Learn to measure temperature and the functions of thermometers, as well as the distinction between clinical and laboratory thermometers.
• Identify Key Concepts: Pay attention to concepts such as Celsius and Fahrenheit scales, normal human body temperature, and precautions when working with a thermometer.
• Differentiate Thermometers: Practice describing and identifying the uses of the different thermometers, including clinical thermometers, laboratory thermometers, and digital thermometers.
• Connect to Real Life examples: Papering down your responses by relating concepts with real life, such as checking fever, measuring weather temperature or industrial applications.
• Revise Important Terms: Learn definitions such as temperature, thermometer, calibration, and body temperature to present answers accurately.
• Practice Question-Answers: Temperature and its Measurement NCERT Solutions should be read to learn how to construct answers in simple and correct language.
• Use Diagrams Where Necessary: Draw nice diagrams of thermometers or scales at places that are needed so that your answers become more effective and scoring.

Benefits of NCERT Solutions for Class 6 Science Curiosity Chapter 7

The Temperature and its Measurement Class 6 question answers give well-organised answers, which make students understand heat, temperature and how to read a thermometer with ease. The solutions are made in accordance with the new syllabus, and thus studying them can serve to prepare students in addition to revising concepts in a very efficient manner.

1. These step-by-step solutions reduce complex concepts such as temperature, types of thermometers and heat transfer to manageable units to enable students to understand.

2. These solutions are in line with the NCERT syllabus 2025-26, so they are ideal for preparing students before their exams.

3. The solutions include all the major points and assist students in succeeding at their homework and test answers.

4. Each question is answered clearly and logically, making it easier for students to grasp and remember concepts.

5. The solutions complement textbook activities and examples, encouraging practical understanding.

NCERT Solutions for Class 6 Science: Chapter-wise

NCERT Solutions Class 6 Science Chapter Wise Answers contain detailed solutions of all the questions in the latest textbook named Curiosity. They are solutions prepared by experts in their respective fields to enable them to comprehend their concepts clearly to attain high scores in exams. The links to each topic, chapter by chapter, enable the students to easily navigate through any topic and study efficiently.

Also read,

Follow the link below to get your hands on the class 6 syllabus and the books recommended for it.

• NCERT Books Class 6
• NCERT Syllabus Class 6