Water exists in three states: solid (ice), liquid (water), and gas (steam or water vapor). Each state has distinct properties and transitions between states occur due to changes in temperature and pressure.
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No, touching a person is not a reliable method to diagnose fever. Body temperature can be difficult to assess accurately by touch alone. Using a thermometer provides a precise measurement to confirm if someone has a fever.
During the COVID-19 pandemic, infrared thermometers were used to measure a person’s temperature from a distance. They detect heat radiating from the body and provide quick, non-contact temperature readings.
Yes, small children generally have slightly higher body temperatures compared to adults. Their normal body temperature ranges from 36.5°C to 38°C due to a higher metabolic rate and less effective temperature regulation.
Yes, older people, even when healthy, often have lower body temperatures than young adults. This is due to a slower metabolism and less efficient regulation of body temperature in older age.