Observation, question, hypothesis, prediction, experiment, publish

• A. Experimental design
• B. The scientific method
• C. The hypothesis cycle
• D. Scientific Method

Answer: (D)

The sequence observation, question, hypothesis, prediction, experiment, publish captures the scientific method—the structured process scientists use to study the natural world. It starts with noticing something, turning it into a question, then proposing a testable hypothesis that makes clear predictions. Those predictions guide experiments designed to gather data under controlled conditions, and the results are analyzed to see whether they support or challenge the hypothesis. Publishing shares the findings so others can evaluate, replicate, or build on them, which is essential for scientific progress. The term experimental design refers only to planning experiments, not the full cycle; the hypothesis cycle isn’t a standard label for this process; and while “The scientific method” and “Scientific Method” describe the same idea, the form without the article is the commonly used phrasing that matches the given option.