What precautions should you take while using a laboratory thermometer?

CBSE Class 7 CBSE Class 7 Science
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What precautions should you take while using a laboratory thermometer?

Answer:

  1. Never hold the thermometer by the bulb while reading it.
  2. Wash the thermometer with water or antiseptic solution before and after use.
  3. While performing the experiment, don’t touch the bulb of the thermometer with the wall of the beaker.
  4. Read the thermometer keeping the level of mercury along the line of sight.