Class 6 Science Chapter 7 Temperature and its Measurement Revision Notes

Quick revision notes for Class 6 Science Chapter 7, “Temperature and its Measurement” — key facts and definitions at a glance for fast last-minute review. These Class 6 Science Chapter 7 notes are ideal for quick revision just before exams.

Key Definitions

  • Temperature: a reliable measure of the hotness or coldness of a body.
  • Thermometer: a device used to measure temperature — clinical (body) and laboratory (general-purpose) types.

Clinical Thermometer

  • Modern type: digital, battery-powered, heat-sensor based.
  • Normal body temperature: 37.0°C (98.6°F) — an average value; individual normal can vary slightly.
  • Body temperature usually stays between 35°C and 42°C.
  • Armpit readings run 0.5–1°C lower than actual.
  • Non-contact/infrared thermometers measure without touching the body.

Laboratory Thermometer

  • Range: typically −10°C to 110°C.
  • Correct use: vertical, bulb not touching the container, read while immersed, eye level with the liquid column.
  • Temperature stays constant while water boils or ice melts.

Temperature Scales

  • Celsius (°C), Fahrenheit (°F), Kelvin (K — the SI unit).
  • Kelvin = Celsius + 273.15.
  • Absolute zero ≈ −273.15°C (0 K).

Quick revision:

Written by Satish

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