The scientific method
Despite being thought of as a single concept, science is really two separate ideas: the scientific method and the fruits of science. The scientific method is a process for discovering new truths about the universe. In essense, it operates as follows:
- Make an observation
- Form a hypothesis
- Test the hypothesis
- Draw a conclusion
- Refine the hypothesis and go to step 3
Note the loop present. In science, it is important that experimental results are repeatable.