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Learn about 'scientific method'

The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry is commonly based on empirical or measurable evidence subject to specific principles of reasoning.

  1. Observe some aspect of the universe.
  2. Invent a tentative description, called a hypothesis, that is consistent with what you have observed.
  3. Use the hypothesis to make predictions.
  4. Test those predictions by experiments or further observations and modify the hypothesis in the light of your results.
  5. Repeat steps 3 and 4 until there are no discrepancies between theory and experiment and/or observation.

When consistency is obtained the hypothesis becomes a theory and provides a coherent set of propositions which explain a class of phenomena. A theory is then a framework within which observations are explained and predictions are made.

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