Student would learn about temperature ,Thermometer ,types of thermometer and structure of Clinical Thermometer

1. LEARNING OBJECTIVES
HOT AND COLD
MEASURING TEMPERATURE
CLINICAL THERMOMETER
READING THE
THERMOMETER
PRECAUTION WHILE
READING THERMOMETER

2. HOT AND COLD
• In our day to day life we come across various objects. We
see some are hot and some are cold .
• The measure of degree of hotness or coldness of a
substance is called its Temperature .
• The device that is used to measure the temperature of a
substance is called Thermometer .

3. MEASURING TEMPERATURE
• There are two types of thermometer :
1. Clinical Thermometer
2. Laboratory Thermometer
• The thermometer that measures our body temperature is
called as Clinical Thermometer .
• A clinical thermometer consists of long , narrow ,
uniform glass tube . It has bulb at end . That bulb contain
mercury . It also has kink .

5. MEASURING
TEMPERATURE
The scale in which the
temperature is measured is
Celsius and Fahrenheit scale .
The clinical thermometer reads
from 35 degree celsius to 42
degree celsius .
The normal human body
temperature is 37 degree celsius
.

6. READING A THERMOMETER
• Wash the thermometer with antiseptic
solution .
• Hold it firmly and give it a few jerks .
• The jerks will give the level of mercury
down.
• Ensure that it falls below 35 Degree C .
• Now place the bulb of thermometer
under your tongue . After a minute take
the thermometer out and note the
temperature . The temperature will be
your body temperature
• While reading keep the thermometer
parallel to the eyes.

7. PRECAUTIONS WHILE READING
THERMOMETER
• Thermometer should be washed after and before
use.
• Ensure that mercury level is below 35 degree
Celsius .
• Do not hold the thermometer by bulb while
reading it .
• Hold the thermometer with care .
• Read the thermometer keeping the level of
mercury along line of sight .

8. • IS THE BODY TEMPERATURE OF EVERY PERSON
37 DEGREE CELSIUS ?
No , it could be slightly lower or higher .
IMPORTANT NOTES
1. The clinical thermometer measures only
human temperature .
2. The temperature never goes below 35
degree celsius and never goes above 42
degree celsius .

9. DEFINITIONS
• TEMPERATURE : The measure of degree of
hotness or coldness of a substance is called as
Temperature .
• THERMOMETER : The device that is used to
measure the temperature of a substance is called
as Thermometer .
• CLINICAL THERMOMETER : Thermometer that
measures human body temperature is called as
Clinical Thermometer .

10. SUMMARY
• Today we studied about thermometer .
• We learnt about how one can check
temperature using thermometer .
• Then we gave a quick intro to Clinical
thermometer
• Then we learnt about how to read the
thermometer.
• Then we studied precautions while using
thermometer .
• At last we learnt about all the definitions
that we studied throughout the session .