NCERT Class 6 Science Chapter 7
Temperature and its Measurement
This chapter introduces Class 6 CBSE students to the concept of temperature as a measure of hotness or coldness, and explores how thermometers are used to measure it accurately. Students learn about different types of thermometers — clinical and laboratory — and the Celsius scale. The chapter also covers heat transfer and why temperature measurement is important in daily life and science.
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Key Terms
- Temperature
- A measure of the degree of hotness or coldness of an object, measured in degrees Celsius (°C) or Fahrenheit (°F).
- Thermometer
- An instrument used to measure temperature, typically using the expansion of mercury or a digital sensor.
- Celsius Scale
- A temperature scale where water freezes at 0°C and boils at 100°C under standard pressure.
- Clinical Thermometer
- A thermometer used to measure human body temperature; the normal body temperature is approximately 37°C (98.6°F).
- Heat
- A form of energy that transfers from a hotter object to a cooler object; heat causes a rise in temperature.
- Conduction
- The process by which heat energy is transferred through direct contact between objects or within a material.
Frequently Asked Questions
What is temperature in Class 6 Science?▾
Temperature is a measure of how hot or cold an object is. It is measured using a thermometer in units of degrees Celsius (°C). The normal human body temperature is 37°C.
What is the difference between heat and temperature in Class 6?▾
Heat is a form of energy that flows from a hotter to a cooler body, while temperature is the measure of the degree of hotness or coldness of an object. Two objects can have the same temperature but different amounts of heat.
What is a clinical thermometer and how is it used in Class 6?▾
A clinical thermometer is used to measure human body temperature. It has a range of 35°C to 42°C. It is placed under the tongue or armpit, and the mercury rises to indicate body temperature. It must be sterilized before use.
What is the Celsius scale in Class 6 Science Chapter 7?▾
The Celsius scale is a standard temperature scale where 0°C is the freezing point of water and 100°C is the boiling point of water. It is the most commonly used scale in science and everyday life.
What are the types of thermometers used in Class 6 Science?▾
Two main types of thermometers are discussed in Class 6: the clinical thermometer (used for measuring body temperature) and the laboratory thermometer (used for measuring temperatures in experiments, with a wider range).
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