It is very important to know that we need to measure the body temperature to help us to know our bodies temperature , and help us to know the weather temperature which affects our life skills.You should know that some processed food industries require a certain temperature , and measuring temperature helps the doctor to write the suitable medicine , where the normal temperature of the healthy person is 37 degree Celsius.It is very important to know that we can not measure the temperature by touching only because the sense of touching helps us in finding out if the object is hot or cold but it can not measure the temperature.You should know that we need a certain device that can measure the temperature accurately , where this device is called the thermometer.