\(35\)°C or \(94\)°F 
Infrared thermometer 
 liquid 
  \(357\)°C
 −\(10\)°C to \(110\)°C
 non transparent 
  mercury
volume  
  Celsius scale
 −\(100\)°C
−\(39\)°C  
  Kink
 
1. Before use, the mercury level in clinical thermometer should be below __________ 
 
2. The freezing point of alcohol is less than 
 
3. All clinical thermometers have a __________ that prevents mercury from flowing back into the bulb.