Four links of hypothetical deduction

The main links of this method are asking questions, making assumptions, deductive reasoning, experimental verification and drawing conclusions.

1. Question: Scientists first determine specific questions or contradictions to be answered by observing natural phenomena and analyzing experimental data.

2. Hypothesis: Based on the existing knowledge and observation results, scientists put forward a preliminary hypothesis or hypothesis that can explain the observed phenomena and try to solve the raised problems.

3. Deductive reasoning: Scientists make logical reasoning according to the proposed hypothesis and predict what detectable consequences or experimental results will be caused by the hypothesis. This step usually includes designing an experimental scheme or obtaining a series of expected experimental results.

4. Experimental verification: Carry out the designed experiment to check whether the expected result of deductive reasoning is consistent with the actual observation result. If the experimental results are consistent with expectations, the hypothesis is supported to some extent.

5. Draw a conclusion: According to the results of experimental verification, scientists can draw a conclusion to confirm or deny the original hypothesis. If the experimental data supports the hypothesis, the hypothesis may be accepted as a temporary scientific theory or model to guide further research; If not, it is necessary to adjust the hypothesis or put forward a new hypothesis for follow-up research.