An observation is defined as something that can be:

• A. Observation
• B. Inference
• C. Hypothesis
• D. Theory

Answer: (A)

An observation is data gathered through the senses or instruments—something you can notice directly, like the color of a flower, the number of leaves, or the temperature of water. It is the factual part of science you can record as evidence. An inference is a conclusion drawn from those observations, a hypothesis is a testable statement about what will happen, and a theory is a well-supported, broad explanation. So an observation is defined as something that can be observed or measured, not a guess or an interpretation.