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What are the materials in a thermometer?
For a classic thermometer: glass and mercury, colored ethanol or another liquid.
Would ethanol be better than mercury for an outdoor thermometer in the arctic?
Ethanol would be better because it has a smaller range.
Why would ethanol cool a thermometer down?
because it has extracts of nettles
What is the red stuff in a thermometer?
Ethanol (Ethyl alcohol) with a red dye in it. A thermometer with a silvery expanding liquid is Mercury.
What elements are used in a thomomitor?
in a thermometer it is either murcury or ethanol, a type of alchohol
What are the parts of a thermometer and their functions?
I not know but "it shows temperature"
Mercury or ethanol thermometer in arctic?
Definitely ethanol. Ethanol doesn't freeze until around -178F; mercury freezes at around -38F. You aren't going to see -178F in the arctic on earth, but -38F is far from impossible.
What are the functions of sixs maximum and minumun thermometer?
it is used in green house
Why is alcohol found in the school's thermometer instead of mercury?
Because the thermal expansion is higher from alcohol (ethanol) and then it's more precise.
What are the functions of a dry bulb thermometer?
A dry bulb thermometer is an ordinary one. It's given this name when it's used to measure air temperature. A wet bulb thermometer takes into account humidity.
Why should not use water in the thermometer?
One of the problems with water in a thermometer is the effect of capillary action - the column of water tends to "stick" to the sides of the thermometer and create a U-shaped surface at the top. This makes it very difficult to read the thermometer. Previously mercury was considered to be a good medium for thermometers, but this has been discontinued due to the health risks from a broken mercury thermometer; the current medium in thermometers is dyed ethanol or methanol.
How do you tell how hot or cold something is?
use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.
