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The red line on a thermometer is the line that indicates what the thermometer is set to. If the red line is on 75, then the heat or the air will run until the temperature in the room gets to 75.
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Why does the Mercury in a thermometer appear red?
If the liquid in a thermometer is red it is not mercury, it is alchohol which has been colouired.
What material is used for thermometer?
Mercury is used in thermometers. The mercury is the red substance in the thermometer that rises when you put it in your mouth.
Invisible electromagnetic radiation was discovered with what-?
It was discovered with a thermometer placed under the sun rays beyond the red end of the spectrum.
What is the red stuff in a thermometer called?
Pretty sure it's Mercury
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.
How is a thermometer like a number line?
How is a thermometer like a number line?
How do you check calculation of current temperature on a min max thermometer?
Compare the readings at the end of the red line.
Why does the Mercury in a thermometer appear red?
If the liquid in a thermometer is red it is not mercury, it is alchohol which has been colouired.
What is red temperature line in a thermometre?
It's either mercury or colored alcohol. They're used because they expand in warmer temperatures, and contract in cooler temperatures, resulting in the rising and falling of the red line in your thermometer.
What mineral makes up a thermometer?
the red part in a thermometer is mercury.
What is the red dot at the bottom of a thermometer called?
thermometer is filed with mercury--HG
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.
Who invented the infrared laser thermometer?
The infra-red laser thermometer was invented by David Phillips in 1984. It was an ear thermometer. The original discovery of infra-red technology was in 1800 by William Herschel.
How do you check the temp of a transmission in a 2005 dodge sprinter van?
Scan tool or an infra red thermometer and point it at the case.Scan tool or an infra red thermometer and point it at the case.
Why do you rotate the stem of the clinical thermometer when you read the thermometer?
If it is an analog thermometer, the face of the thermometer is shaped in a way that magnifies the readout, but it has a very narrow angle of visibility. Once rotated to the proper angle, the once thin line becomes a thick, easy to read line.
What material is used for thermometer?
Mercury is used in thermometers. The mercury is the red substance in the thermometer that rises when you put it in your mouth.
Real life use of vertical number line?
A thermometer.
