STEM Excellence Series: Empowering the Next Generation

CELSIUS DEGREE

Celsius Degree

Definition Of Celsius Degree

Celsius is used to measure temperature in the metric system.

More About Celsius Degree

Celsius is represented by the symbol '°C'.
Another name for Celsius is 'centigrade'.
The freezing point of water is 0°C and the boiling point of water is 100°C under a pressure of one standard atmosphere.

Video Examples: Measuring temperature Celsius and Fahrenheit degrees

Example of Celsius Degree

The figure shown is a Celsius/Centigrade thermometer and is marked at 10, so the temperature can be written as 10°C.

example of Celsius Degree

Solved Example on Celsius Degree

Ques: Identify the temperature shown in the figure using °C.

example of Celsius Degree

Choices:

A. 15°C
B. 55°C
C. 20°C
D. 25°C
Correct Answer: c

Solution:

Step 1: In the figure, the marked line indicates the temperature.
Step 2: So, the temperature shown using °C is 15°C.

Quick Summary

  • Celsius is represented by the symbol '°C'.
  • It's also known as 'centigrade'.
  • Water freezes at 0°C and boils at 100°C.
\[ null \]

🍎 Teacher Insights

Use real-world examples like weather reports and cooking to illustrate the Celsius scale. Demonstrate the freezing and boiling points of water to make the concept tangible.

🎓 Prerequisites

  • Basic arithmetic
  • Understanding of measurement units

Check Your Knowledge

Q1: What is the freezing point of water in Celsius?

Q2: What is the boiling point of water in Celsius at standard atmospheric pressure?

Frequently Asked Questions

Q: What is the difference between Celsius and centigrade?
A: They are the same thing; Celsius is the modern name for the centigrade scale.

Q: Is Celsius used worldwide?
A: It is the standard temperature scale in most countries except for the United States, where Fahrenheit is more common.

© 2026 iCoachMath Global Math Glossary. All Rights Reserved.