| A | B |
| Scientific Revolution | During the Renaissance, emphasis on questioning and experimentation |
| Copernicus | Studied the movement of the planets and discovered the earth revolves around the sun |
| Galileo Galilei | Invented a telescope that supported Copernicus's findings; church made him recant |
| Scientific Method | Doing research relying on observation and experimentation |
| Rene Descartes | Thinker who believed in human reasoning |
| John Locke | Enlightenment thinker; natural rights to life, liberty and property |
| Montesquieu | French Enlightentment philosopher who came up w/ separation of powers and checks and balances |
| Voltaire | Enlightenment thinker who believed in free speech |
| Rousseau | Enlightenment thinker who believed in a "social contract" between the ruler and their subjects. People give up some freedom in return for protection |