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Heat :fire: - Coggle Diagram

- - - - Construction
        
        It consists of a long,uniform,narrow,glass tube.It has a bulb at one end. The bulb contains mercury (Hg).It also has. a kink.
      - Definition
        
        Use to measure body temperature. Ranges from 35°C to 42°C.Normal body temperature is 37°C
      - Uses
        
        Wash the thermometer with an antiseptic.Give few jerks before use to make sure the Hg level is below 35°C.
      - Precaution
        
        Wash the thermometer before and after use and make sure the temperature is <35°C before using it.You should not touch the bulb at all.
    - - Definition
        
        It measures the temperature of objects.Range is -10° C to 110° C
      - Precaution
        
        It should be kept upright, bulb and should be surrounded by the substance from all sides.