Temperature is how hot or cold something is. Temperature is measured by a thermometer or a thermostat. With temperature, there is Celsius, Kelvin and Fahrenheit.
A thermometer is a scientific product that helps to tell how hot or cold something is. IT works by having liquid in it. Most of the liquid in a thermometer is mercury or alcohol. These come in a glass tube and are used to read temperature.
When the liquid in a glass thermometer goes up, it means that the temperature is hotter. This happens because when heat hits the liquid, it causes it to expand and go up the tube.
When the temperature is cooler, it will cause the liquid to go down because it contracts.
There are three main temperature scales that we used. They are Celsius, Kelvin and Fahrenheit. The Celsius scale is considered the most popular temperature scale for most of the world. With Celsius, the degrees are shown with a C. With the Celsius scale, water freezes at 0 degrees and boils at 100 degrees.
Kelvin is a temperature scale that was invented by a scientist’s named Kelvin. With the Kelvin scale, there are no symbols to show the degree. Instead, most people just use a K to show they are checking a temperature in Kelvin. With Kelvin, it uses zero as the absolute 0 of the scale. With the Kelvin scale, there are 100 increments between boiling and freezing.
Fahrenheit is used in the United States. This temperature has a boiling point at 212 degrees and a freezing point at 32 degrees. Fahrenheit scale is showing with a F.
You can convert the temperature with different scales by using these formulas:
Celsius = (F-32) / 1.8
Fahrenheit= 1.8 X C+32 degrees.
In order to convert from Celsius to Kelvin, use this formula:
Kelvin = Celsius + 273.15
Celsius = Kelvin – 273.15
Absolute zero is the coldest temperature that any substance can have. It is equal to 0 Kelvin.
Temperature affects the matter of things. When something freezes, it can become a solid. When something gets warmer, it can become a liquid or a gas. When this happens, the matter changes the object.