Vocabulary

3. a method of investigation involving observation and theory to test scientific assumptions
4. the idea that the sun is the center of the solar system earth and the other planets revolving around it
6. the idea that Earth is the center of the solar system or universe
7. an English philosopher who emphasized the value of experimentation.
8. a Polish astronomer that determined that Earth and the other planets revolve around the sun.

1. a French philosopher skilled at mathematics and logic. He believed that human reason could be used to solve complex problems.
2. a shift in thinking about the study of the natural world that began in the 1500s and departed from traditional religious teachings
5. an English physicist that published the Principia, or Principles in 1687. This was a book that explained the laws of gravity and motion.
6. an Italian scientist who observed the sky directly with a telescope. His observations supported the heliocentric theory