Across
- 2. made regular observations of the heavens using a telescope
- 6. a method of collecting and analyzing evidence
- 8. stated the earth was the center of the universe
- 9. finalized the scientific method
- 10. created the heliocentric theory of the universe
Down
- 1. theory that the earth and planets revolve around the sun
- 3. theory that places earth at the center of the universe
- 4. taught that questioning was the way to the truth
- 5. developed the argument of the universal law of gravitation
- 7. father of rationalism "I think, therefore I am"