A theory is an explanation for a physical event based on observation, experimentation, and data analysis.
Science requires an open-minded approach to the universe.
Scientific ideas are not absolute, and are constantly being tested, challenged, and revised. History reveals that good scientific theory is as dependent upon criticism as it is upon creativity. Before you begin your research on a scientific theory, read the questions below to help focus your efforts. Use the table to help you organize your research. You will probably find current information on the theory while you are researching the history of it, so use your table to keep the data organized.