What is the correct order of operations of the scientific method?

Question

BlackTom AI · Accepted Answer

Scientific inquiry begins with observation: noticing a phenomenon or gathering data that raises a question. From that observation one formulates a hypothesis, deduces testable predictions from the hypothesis, and then performs experiments to test those predictions.

1) Relevant knowledge points and concepts
- Observation: gathering empirical facts or noticing a pattern that needs explanation.
- Hypothesis: a tentative, testable explanation of the observation.
- Predictions: logical consequences deduced from the hypothesis that can be measured or tested.
- Experiment: controlled procedures to test whether the predictions (and thus the hypothesis) are supported or refuted.
- Iteration: results can lead to revised hypotheses and further tests.

2) Step-by-step reasoning
- Step 1: Make an observation that prompts a question (e.g., plants grow faster in one soil).
- Step 2: Propose a hypothesis that could explain the observation (e.g., soil A contains more nitrogen).
- Step 3: Derive specific, testable predictions from that hypothesis (e.g., if soil A has more nitrogen, then plants in soil A will show higher leaf nitrogen content and growth under controlled conditions).
- Step 4: Design and run experiments to test those predictions, collecting results that either support or contradict the hypothesis.

3) Calculations
- No numerical calculations apply here, but the logical sequence is crucial: observation → hypothesis → prediction → experiment.

4) Why the correct answer is correct
- Predictions logically follow from a hypothesis; experiments test those predictions. Thus the order Observation > Hypothesis > Predictions > Experiment correctly reflects the causal and logical flow of scientific method.

5) Why other options are incorrect (brief)
- a. Puts hypothesis before observation and places results before experiment and predictions—orders are nonsensical.
- c. Puts experiment before hypothesis and observation—experiments test hypotheses and generally follow observations, not precede them.
- d. Puts predictions before the hypothesis—predictions must be deduced from a hypothesis, so they cannot come first.

Conclusion: The correct order is b. Observation > Hypothesis > Predictions > Experiment, which matches the provided answer.

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