Across
- 3. An English statesman and writer
- 4. A logical procedure for gathering information
- 7. Oval shape
- 9. This person studies planets
- 10. A force
- 12. A man who believed Earth was the center of the universe
- 13. Galileo's book
- 16. Promoting excellence in science for the benefit of humanity
- 17. Isaac Newton made these
- 18. "I think therefore I am".
- 19. A major change in European thought
Down
- 1. The earth is in the center
- 2. Astronomer who found out how the planets orbit
- 5. The sun is in the center
- 6. The theory of the ultimate nature of reality
- 8. A judicial procedure
- 10. Creator of the first telescope
- 11. English doctor who made advances in human anatomy
- 14. The original thinker of heliocentrism
- 15. The creator of the three laws of motion