Which term best describes an event that can be observed and explained scientifically?

• A. Opinion
• B. Scientific Phenomenon
• C. Hypothesis
• D. Theory

Answer: (B)

Observing and explaining events with evidence is what scientists do with phenomena. A scientific phenomenon is an event or occurrence in the natural world that can be seen, measured, and studied to understand how it happens. Examples include why a plant grows toward light or why rain forms in clouds, where there are observable clues and data to analyze. An opinion is a personal belief not testable by data. A hypothesis is a proposed explanation that scientists test through experiments. A theory is a well-supported explanation that ties many observations together. Because the question asks for the term describing an observable event that science can explain, the best fit is a scientific phenomenon.