Across
- 2. Sun centered system
- 4. Antiseptic pioneer
- 9. Penicillin discoverer
- 11. Traveler to new lands
- 12. Wave theory
- 14. Blood circulation
- 16. Smallpox vaccine maker
- 20. Religious teacher abroad
- 22. Atomic bomb father
- 23. E equals mc squared
- 24. Exploration ship
- 25. Germ theory father
Down
- 1. Exchange of goods
- 3. Valuable trade item
- 5. Trade route Asia
- 6. Electromagnetism
- 7. Belief against church
- 8. Planetary motion
- 10. Radium discoverer
- 13. Anatomy father
- 15. Nuclear reactor builder
- 17. Long sea journey
- 18. Navigation tool
- 19. Creator of maps
- 21. Polio vaccine maker