Across
- 2. English statesman and writer
- 5. German astronomer and mathematician; assistant to Brahe
- 7. German physicist and engineer
- 9. American public official, scientist, inventor, and writer
- 10. French chemist
- 11. Danish astronomer
- 12. Developed the heliocentric system (the Sun is at the center of the universe, with all the planets and stars revolving around it in circular orbits)
Down
- 1. Italian astronomer and physicist
- 3. English philosopher and mathematician
- 4. Flemish anatomist and surgeon
- 6. French philosopher and mathematician
- 8. English physician
- 11. British physicist and chemist