Across
- 1. – Ancient civilization in Central America
- 3. – Inventor of the printing press
- 5. – Ancient Greek philosopher, student of Socrates, teacher of Aristotle
- 7. – The Red Planet
- 8. – Chemical formula for water
- 11. – Basic unit of the nervous system
- 14. – Highest mountain on Earth
- 16. – Legendary lost city mentioned by Plato
- 17. – Molecule that carries genetic information
- 18. – Intelligent sea animal known for jumping and playing
- 19. – Dutch painter of Starry Night
- 20. – Mythical animal, looks like a horse with a horn
Down
- 2. – Scientist and inventor known for alternating current
- 4. – Largest rainforest in the world
- 6. – English playwright who wrote Hamlet
- 9. – French emperor defeated at Waterloo
- 10. – Traditional Japanese dish made with rice and fish
- 12. – Element essential for life, symbol C
- 13. – Scientist who improved the telescope and supported heliocentrism
- 15. – Largest ocean on Earth
