1. Go to a doctor or your nearest health centre. Observe the doctor taking the temperature of patients. Enquire:
(a) why she dips the thermometer in a liquid before use.
(b) why the thermometer is kept under the tongue.
(c) whether the body temperature can be measured by keeping the thermometer at some other place than the mouth.
(d) whether the temperature of different parts of the body is the same or different.
Answer:
(a) The doctor must wash the thermometer with an antiseptic solution before and after use on different patients to prevent infection.
(b) The temperature under the tongue best represents the true temperature of the inner body. Therefore, we can get an accurate reading.
(c) The body temperature can be measured by keeping the thermometer underneath the armpit, on the forehead, in the air and in the rectum. However, the reading will differ depending on where you keep the thermometer.
(d) Different parts of the body have different temperatures.
“Go to a doctor or your nearest health centre. Observe the doctor taking the temperature of patients. Enquire:
(a) why she dips the thermometer in a liquid before use.
(b) why the thermometer is kept under the tongue.
(c) whether the body temperature can be measured by keeping the thermometer at some other place than the mouth.
(d) whether the temperature of different parts of the body is the same or different.” – Solved
Related Links:
Solution to Extended Learning Problem 2
Solution to Extended Learning Problem 3
Solution to Extended Learning Problem 4
Solution to Extended Learning Problem 5
Solution to Activity 3.1
Solution to Activity 3.2
Solution to Activity 3.3
Solution to Activity 3.4
Solution to Activity 3.5
Solution to Activity 3.6
Solution to Activity 3.7
Solution to Activity 3.8
Solution to Activity 3.9
Solution to Activity 3.10
Solution to Activity 3.11
Solutions to Chapter 3 Heat
