Final answer:
Observation is information acquired through direct observation and measurement using scientific methods.
Step-by-step explanation:
Observation is information acquired by direct observation and measurement using systematic scientific methods. It is the active acquisition of information from a primary source, such as detecting something through human senses or using instruments and measuring devices that enhance human senses. For example, filling the air in a car tire and noticing an increase in the pressure reading on the gauge is an observation.