Class 6 Science - UP
Temperature and its Measurement
In this chapter, Class 6 UP Board students will explore the concept of temperature as a measure of how hot or cold an object is. You will learn about our sense of touch being unreliable for measuring temperature and the need for standardized instruments. The chapter introduces the thermometer, detailing how it works using the expansion and contraction of liquids like mercury. Students will study different temperature scales, specifically Celsius and Fahrenheit, and learn the correct methods to measure body temperature and laboratory temperatures. Understanding this chapter is essential for building a strong foundation in physics and scoring well in your science exams.
Start Learning FreeKey Concepts
Temperature
Temperature is a reliable measure of the hotness or coldness of an object, unlike our sense of touch which can be misleading.
Thermometer
A device used for measuring temperature accurately, typically consisting of a glass tube with a liquid like mercury or alcohol inside.
Celsius Scale
A standard temperature scale where the freezing point of water is 0 degree Celsius and the boiling point is 100 degrees Celsius.
Fahrenheit Scale
Another common temperature scale where the freezing point of water is 32 degrees Fahrenheit and the boiling point is 212 degrees Fahrenheit.
Clinical Thermometer
A specialized thermometer used to measure human body temperature, usually ranging from 35 degree Celsius to 42 degree Celsius.
Important Formulas
Board Exam Info
In the UP Board Class 6 Science examinations, this chapter typically carries around 4 to 6 marks. Common question types include fill in the blanks, true or false, short answer questions about the uses of clinical versus laboratory thermometers, and drawing a neat diagram of a clinical thermometer.
Frequently Asked Questions
Why can we not use a clinical thermometer to measure the temperature of boiling water?
A clinical thermometer has a limited range from 35 degree Celsius to 42 degree Celsius. If placed in boiling water, the high temperature will cause the glass tube to break.
Why is mercury used in thermometers?
Mercury remains in liquid form over a wide range of temperatures, does not stick to the glass walls, and expands uniformly when heated.
What is the normal temperature of a human body?
The normal temperature of a healthy human body is 37 degree Celsius (which is equal to 98.6 degree Fahrenheit).
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