Because it has just been in your mouth, which has many types of bacteria inside. This could harm someone else if it gets into them.
The liquid is an antiseptic used to sterilise it. You wouldn't want to be contaminated with any bacteria or viruses from the last person who used the thermometer, would you?
solution
5
~60 drops solution: 20 drops/mL * 3 mL = 60 drops
When the temperature drops, the alcohol in the thermometer contracts and takes up less space. This results in the alcohol level appearing to go down in the thermometer.
yes
gtt stands for "drops" in medical terminology. you need to determine the type of solution [fluid] that you are refering to in order to determine the number of drops. So, for instance, a crystaloid solution [e.g. normal saline] has 20 drops per ml Therefore 8mls would form 8 x 20 drops = 160 drops A colloid solution should as [gelofusine or blood] has only 15 drops per ml therefore 8mls would form 8 x 15 drops = 120 drops Hope this helps.
So the room will stay the same temperature. It does this when the thermometer drops temperature moderately.
no
Your vinegar and battery acid solution doesn't make good eye drops.
Coffin drops!
it expands and contracts when the temperature drops, the mercury contracts...when the temperature increases, the mercury expands