* Temperature is variable: The temperature of an object changes depending on its environment and how much heat it gains or loses.
* Room temperature is a range: 20 degrees Celsius is often considered "room temperature," but that's a broad range. A room might be 18 degrees one day and 22 degrees the next.
However, here are some examples of things that *could* be around 20 degrees Celsius:
* A glass of water at room temperature
* A sunny day in the spring or fall
* A well-insulated room with no heating or cooling
* A ceramic tile floor in a room that's not actively heated or cooled
To accurately know the temperature of an object, you'd need to measure it with a thermometer.
