Scientific method

  1. Make observations that generate questions about the world.

  2. Form potential explanations - hypotheses.

  3. Devise testable and falsifiable predictions based on the hypotheses.

  4. Conduct critical experiments, with good of control of variables, to test hypotheses and their predictions.

  5. Draw conclusions and make revisions.
Good hypotheses lead to new observations and hypotheses; science progresses in a spiral of knowledge.