Class 7 Science Physics Heat



State similarities and differences between the laboratory thermometer and the clinical thermometer.
Solution: 
Similarities:
  1. Bulbs contain mercury.
  2. Glass tubes are long, narrow and uniform.

Differences:
  1. The clinical thermometer is used to measure body temperature, however, laboratory thermometer is not used for the purpose of measuring body temperature.
  2. The temperature range of clinical thermometers is 35°C to 42°C and that of laboratory thermometers is -10°C to 110°C.
  3. The least count of both the thermometers is different.
  4. The clinical thermometer is can be tilted while reading the temperature values whereas laboratory thermometer need to be kept upright.

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sound
gravitation
heat
matter in our surroundings
force and laws of motion