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Why is the stem of thermometer made up of glass?
To enable you to read the level the fluid has reached
Describe the structure of a thermometer?
The thermometer consists of a very fine glass tube having a very small bore and is called capillary tube. At one end of capillary tube a very thin glass bulb is provided. The bulb is filled with mercury( most of the times) or alcohol The other end of capillary tube is sealed. The capillary tube is protected by a thick glass tube called stem. On the stem are made markings. These markings are called graduations or degrees.
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.
What can block gamma ray?
Very thick earthen, rock, or concrete walls. Or, lead or gold shielding.
What instrument measures how hot or cold something is?
A thermometer is an instrument that measures cold and heat, together with temperature variations.
How should you do to increase the accuracy of the thermometer?
using a thin capillary bore using a thick glass stem
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 is a Thick stem?
An example of a thick stem is the edible stem of the Rhubarb plant.
How thick was the walls of the San Diego mission?
The walls were 5 feet thick!
Do saprophytes have thick walls called endospores?
Saprophytes have thick walls called endspores?
How thick were the walls of the Palazzo Medici?
as thick as any other renaissance buildings walls
How thick are the walls of cape lookout?
it thick as a brick
What are the characteristics of a plant stem?
it is thick
How thick are stone keeps walls?
They are about two meters thick.
Describe the structure of a capillary wall?
capillary walls are very thin, often a cell thick. artery walls have two thick layers.
Why do desert homes often have thick walls?
Thick walls help keep the house cooler in summer and warmer in winter.
How thick are average sheet rock walls?
Interior sheet rock walls are normally 4-1/2" thick.
