This MCQ module is based on: Temperature and its Measurement
Temperature and its Measurement
Chapter 7 Summary — Temperature and its Measurement
Touch is unreliable
Our skin only compares. The same water can feel warm or cold to different hands.
Thermometer
A device that measures temperature in °C or °F. It has a bulb, capillary tube and scale.
Lab thermometer
Range -10 °C to 110 °C. Used in science experiments. Read at eye level, hold vertically.
Clinical thermometer
Range 35–42 °C. Has a kink so mercury stays until shaken. Measures body temperature.
Normal body temp
About 37 °C (98.6 °F). Above 37.5 °C is a fever.
Digital thermometer
Safer (no mercury), faster, easier to read. Preferred today.
Celsius ↔ Fahrenheit
°F = (9/5 × °C) + 32; °C = (°F − 32) × 5/9.
Water points
Freezes at 0 °C (32 °F); boils at 100 °C (212 °F).
Variation
Temperature changes through the day, across seasons and with place (altitude, latitude).
Key Words
NCERT Exercises
Q1 Why can't we rely on our sense of touch to judge how hot or cold something is?
Q2 Name the main parts of a laboratory thermometer.
Q3 Write any three differences between a laboratory thermometer and a clinical thermometer.
| Feature | Laboratory | Clinical |
|---|---|---|
| Range | -10 °C to 110 °C | 35 °C to 42 °C |
| Kink | Absent | Present (holds reading) |
| Use | Science experiments, liquid temperatures | Only human body temperature |
| Smallest division | Usually 1 °C | Usually 0.1 °C |
Q4 Why is mercury used in thermometers? What are its disadvantages?
Disadvantages: (i) Mercury is highly toxic — if the glass breaks, it can poison people; (ii) mercury vapour is harmful if inhaled; (iii) it freezes at about −39 °C, so cannot measure very low temperatures; (iv) disposing of broken thermometers is difficult. This is why digital thermometers are replacing mercury ones.
Q5 Can we always decide that a person has a fever just by touching their forehead?
Q6 Is it always safe to use a clinical thermometer to measure a temperature of 42 °C?
Q7 Lambok needs to change his school uniform, eat his lunch, and rest for a while. Will his body temperature fall during this time? Why?
Q8 If your friend measures the classroom temperature with a laboratory thermometer at different times of the day, what will they notice?
Q9 The temperature shown by the thermometer in Fig 7.10 is:
(i) 28.0 °C (ii) 27.5 °C (iii) 26.5 °C (iv) 25.3 °C
Q10 A laboratory thermometer has 50 equal divisions between 0 °C and 100 °C. What does each small division measure?
Value of each division = \( \dfrac{100}{50} = 2\,°C \). So each small division stands for 2 °C.
Q11 Draw the scale of a thermometer in which the smallest division is 0.5 °C. Show only the portion between 10 °C and 20 °C.
Q12 Komal tells you that she has a fever of 101 degrees. Does she mean Celsius or Fahrenheit?
Q13 Convert: (a) 40 °C to °F (b) 98.6 °F to °C.
(b) \( °C = (98.6 - 32) \times \dfrac{5}{9} = 66.6 \times \dfrac{5}{9} = 37\,°C \). So 98.6 °F is our normal body temperature!
Q14 Why is a digital thermometer preferred over a mercury thermometer today?
Frequently Asked Questions — Temperature and its Measurement — Chapter 7 Exercises
What does the topic 'Temperature and its Measurement — Chapter 7 Exercises' cover in Class 6 Science?
The topic 'Temperature and its Measurement — Chapter 7 Exercises' is part of NCERT Class 6 Science Chapter 7 — Temperature and its Measurement. It covers the key ideas of temperature, thermometer, weather, NCERT exercises, explained through everyday examples, labelled diagrams and hands-on activities from the NCERT Curiosity textbook. Class 6 students learn simple definitions, see why each idea matters in daily life, and try short experiments and observations. The lesson uses easy language, colourful pictures and small questions so that young learners build a strong base for higher classes and for competency-based questions in CBSE school tests.
Why is 'Temperature and its Measurement — Chapter 7 Exercises' important for Class 6 NCERT Science?
'Temperature and its Measurement — Chapter 7 Exercises' is important because it builds the first ideas of science that Class 6 students will use again in Class 7, 8 and beyond. NCERT Chapter 7 — Temperature and its Measurement — introduces temperature and connects it to things children already see at home, at school and in nature. Learning this topic helps students ask better questions, understand simple news about science, and score well in CBSE tests that use competency-based questions. The chapter also supports NEP 2020 by encouraging curiosity, observation and learning by doing rather than only reading and memorising.
What are the key ideas students should remember from Temperature and its Measurement — Chapter 7 Exercises?
The key ideas in 'Temperature and its Measurement — Chapter 7 Exercises' for Class 6 Science are: temperature, thermometer, weather, NCERT exercises. Students should be able to say each term in their own words, give one or two easy examples from daily life, and draw a small labelled diagram where needed. A good way to revise is to make flashcards, write a short note in the science notebook, and solve the NCERT in-text and exercise questions of Chapter 7. Linking every idea to something seen at home or school — in the kitchen, garden, playground or sky — makes these ideas easy to remember for unit tests and the annual CBSE examination.
How is Temperature and its Measurement — Chapter 7 Exercises taught using activities in NCERT Curiosity Class 6?
NCERT Curiosity Class 6 Science teaches 'Temperature and its Measurement — Chapter 7 Exercises' through an inquiry-based approach using Predict–Observe–Explain activities. Students first make a guess, then try a small experiment with safe, easily available materials, and finally explain what happened and why. This matches the NEP 2020 focus on learning by doing. For Chapter 7 — Temperature and its Measurement — the textbook has hands-on tasks, labelled pictures and thinking questions built for Bloom's Taxonomy Levels 1 to 6. Teachers use these activities, along with competency-based questions (CBQs) and assertion–reason items, to check real understanding instead of only rote learning.
How should Class 6 students prepare for the Chapter 7 exercises?
To prepare for the Chapter 7 — Temperature and its Measurement — exercises in NCERT Class 6 Science, students should first revise the theory in Parts 1–3 and make a short note of definitions and diagrams for temperature, thermometer, weather, NCERT exercises. Next, try each exercise question on their own before looking at the solution. Pay special attention to MCQs, match-the-following, fill-in-the-blanks, assertion–reason and short-answer items, as these often appear in CBSE competency-based tests. Practising with the NCERT Curiosity textbook, the exemplar questions, and the MyAiSchool practice bank helps Class 6 students score better in unit tests and the annual examination.
How does 'Temperature and its Measurement — Chapter 7 Exercises' connect to other chapters of Class 6 Science?
'Temperature and its Measurement — Chapter 7 Exercises' connects to many other chapters in NCERT Class 6 Science Curiosity. The ideas of temperature come back when students study related topics like diversity in the living world, food, magnets, measurement, materials, temperature, water, separation, habitats, natural resources and the solar system. For example, what students learn here helps them build mental pictures for later chapters and for Class 7 and Class 8 Science. Teachers often ask cross-chapter questions in CBSE exams to check if students can use what they learned in Chapter 7 — Temperature and its Measurement — in new situations. This linked approach matches the NEP 2020 and NCF 2023 focus on holistic, competency-based learning.