Checking Temperatures: A Class Experiment
In Activity 3.3: Measuring Body Temperature of Friends, you’ll learn how to measure body temperature using a clinical thermometer and explore how body temperatures can vary among different people.
Objective
To understand that human body temperature can vary slightly and learn how to use a clinical thermometer correctly.
Materials Needed
- A clinical thermometer
Steps to Follow
- Prepare the Thermometer: Clean the thermometer with an antiseptic solution. Check that the mercury level is below 35°C.
- Measure Temperature: Take turns to measure the body temperature of at least 10 friends. Place the bulb of the thermometer under the tongue, close the mouth, and wait for a minute before taking the reading.
- Record Observations: Write down each person’s name and their temperature in a table like Table 3.2.
- Compare Temperatures: After everyone has been measured, compare the temperatures.
Expected Observations
- You’ll notice that not everyone has the exact same temperature.
- The temperature readings will likely be between 35°C and 42°C.
- Some temperatures may be slightly higher or lower than the average of 37°C.
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Conclusion
Through this activity, you learn that the normal human body temperature of 37°C is just an average. In reality, everyone’s temperature can vary a little. It’s normal to have a body temperature that is slightly higher or lower than 37°C. This activity also teaches you how to use a clinical thermometer correctly and the importance of cleanliness while using it.
Important Points
- Always clean the thermometer before and after use.
- The clinical thermometer is designed only for measuring human body temperature.
- The normal range of human body temperature is between 35°C and 42°C.
- Variations in body temperature are normal and part of human physiology.
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