Page 175 - Maths Class 05

2. The Celsius Scale

Celsius scale is also called centigrate scale and is marked from 0°C to 100°C. 0°C

indicates the freezing point of water and 100°C indicates the boiling point of water.
Comparison of Two Scales

°C °F

Water freezes at 0° 32°

Water boils at 100° 212°

Normal body temperature 37° 98.6°

Practice - 12
Practice - 12
Practice - 12
Practice - 12
1. Fill in the tables given below.

Table : 1 Conversion of °F to °C

5
Fahrenheit (°F) °F – 32 = R °C = R ×
9

a. 35°

b. 40°

c. 90°

d. 98.6°

e. 110°

f. 120°

g. 158°

h. 200°

Table : 2 Conversion of °C to °F

9
Celsius (°C) °C × = R °F = R + 32
5

a. 10°

b. 30°

c. 40°

Mathematics-5 175