What Is the Red Liquid in a Thermometer?

Answer

The red liquid in a thermometer is a coloured alcohol. The coloured alcohol can be replaced with a metallic liquid called mercury. The red liquid and the metallic liquid work in a similar manner. A thermometer measures the temperature outside and inside the house and it also measures the body temperature.
Q&A Related to "What Is the Red Liquid in a Thermometer"
The red liquid in a liquid-in-glass thermometer is usually alcohol, with red dye added for visibility. Some liquid-in-glass thermometers use mercury, which is silver-coloured. The
http://wiki.answers.com/Q/What+is+the+color+red+on...
Thermometers may have mercury, but most now have a chemical
http://www.chacha.com/question/what-is-the-red-liq...
All of the people who answered "mercury" are wrong. Mercury thermometers are still legal and you can order them from medical or chemical supply houses. Mercury has a silvery
http://answers.yahoo.com/question/index?qid=200608...
The first thermometers manufactured contained water but the fact that water freezes at 32 degrees Fahrenheit led manufacturers to switch to mercury. Many older thermometers contained
http://www.ehow.com/facts_7564264_liquid-inside-th...
1 Additional Answer
The red liquid in a thermometer is normally alcohol which has red dye mixed in. Thermometers used to have mercury in them, but were found to be very dangerous.
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