Answer: It is called an observation
Explanation: When we have a phenomenal and we want to gather information about it, we need to "observe" it.
This may be done by using our senses, like looking, smelling, touching, or a more modern approach, using tools, like spectrometers, velocimeter, or the needed tool.
A given feature of a phenomenon that can be measured is called an "observable", and the act of measuring this "observable" is called an "observation"
