Question 1

Which device is used to measure our body temperature?

Accepted Answer

A clinical thermometer is specifically designed and used to measure human body temperature. It usually has a temperature range from 35°C to 42°C, which is suitable for the normal human body temperature range.

Question 2

What is the normal temperature of a healthy human body?

Accepted Answer

The normal temperature of a healthy human body is 37°C (or 98.6°F). This temperature remains fairly constant under normal conditions despite external weather changes.

Question 3

What is the range of a standard clinical thermometer?

Accepted Answer

The range of a clinical thermometer is from 35°C to 42°C. This range is sufficient because the human body temperature rarely falls below 35°C or rises above 42°C.

Question 4

What is the range of a typical laboratory thermometer?

Accepted Answer

A typical laboratory thermometer has a wider range, usually from -10°C to 110°C, making it suitable for measuring temperatures of various substances in science experiments.

Question 5

Which metal is commonly used in liquid thermometers due to its properties?

Accepted Answer

Mercury is a liquid metal commonly used in thermometers because it remains liquid over a wide temperature range, expands uniformly, and does not stick to glass.

Heat — NCERT Class 7 Science Important Questions & Revision Notes