Temperature and Its Measurement — Class 6 Science NCERT Solutions (Free)

Free step-by-step NCERT solutions for Class 6 Science chapter "Temperature and Its Measurement" — 8 important questions with detailed answers for CBSE board exam preparation.

TL;DR: Free step-by-step NCERT solutions for Class 6 Science chapter "Temperature and Its Measurement" — 8 important questions with detailed answers for CBSE…

By Syllab.in · Updated Jun 14, 2026

Key Questions Covered:

What is temperature? How is it measured?
What are the three main temperature scales?
How does a liquid thermometer work? Explain with an example.
What is the difference between heat and temperature?
What safety precautions should be taken while using a thermometer?
What are clinical thermometers and why are they used?
+ 2 more questions in the full chapter

Solutions Summary:

Question	Status
What is temperature? How is it measured?	✓ Solved
What are the three main temperature scales?	✓ Solved
How does a liquid thermometer work? Explain with an example.	✓ Solved
What is the difference between heat and temperature?	✓ Solved
What safety precautions should be taken while using a the…	✓ Solved
What are clinical thermometers and why are they used?	✓ Solved

Showing 6 of 8 questions

Q1: What is temperature? How is it measured?

Temperature is the measure of how hot or cold a body is. It is measured using a thermometer, which contains a liquid (usually mercury or alcohol) that expands when heated and contracts when cooled. The expansion or contraction moves the liquid along a scale, showing the temperature reading.

Q2: What are the three main temperature scales?

The three main temperature scales are: - Celsius (°C): Water freezes at 0°C and boils at 100°C - Fahrenheit (°F): Water freezes at 32°F and boils at 212°F - Kelvin (K): Absolute zero is 0 K, water freezes at 273.15 K and boils at 373.15 K

Q3: How does a liquid thermometer work? Explain with an example.

A liquid thermometer contains liquid mercury or alcohol in a glass bulb. When the bulb is placed in a hot body, heat is transferred to the liquid, causing it to expand. The expanding liquid rises up the narrow glass tube marked with temperature numbers. When the bulb is cooled, the liquid contracts and falls down. This movement shows the temperature change.

Q4: What is the difference between heat and temperature?

Temperature is the measure of the average kinetic energy of particles in a body, expressed in degrees. Heat is the energy transferred from a hot body to a cold body due to the temperature difference. Heat flows from higher to lower temperature until thermal equilibrium is reached.

Q5: What safety precautions should be taken while using a thermometer?

Safety precautions when using a thermometer: - Handle it gently to avoid breaking the glass - Do not use it to stir liquids - Do not use it to measure temperatures above its maximum range - Wash the thermometer with cool water before and after use - Never hold it too tightly while taking temperature

Q6: What are clinical thermometers and why are they used?

Clinical thermometers are specialized thermometers designed to measure human body temperature. They have a range of 35°C to 42°C. They contain a constriction in the tube that prevents the mercury from falling back when removed from the body, allowing the reading to be taken easily even after removal.

Showing 6 of 8 questions. Visit the full page for complete solutions.