Science & Discovery

12345678910111213141516171819202122232425
Across
  1. 3. Pioneer in radioactivity research
  2. 7. Proposed a Sun-centered solar system
  3. 9. Mathematician who shouted Eureka
  4. 10. Primatologist who studied chimpanzees
  5. 12. Most abundant element in Earth's crust
  6. 13. Pioneer of observational astronomy
  7. 15. Blue gemstone prized by royalty
  8. 19. Gas used in illuminated signs
  9. 20. Creator of the periodic table
  10. 21. Red gemstone associated with July
  11. 22. Developed the theory of relativity
  12. 23. Inventor whose name is now widely recognized
  13. 24. Green gemstone linked to May
  14. 25. Formulated the laws of motion
Down
  1. 1. Experimented with electricity and lightning
  2. 2. Author of A Brief History of Time
  3. 4. Hardest natural mineral
  4. 5. Element with the highest melting point
  5. 6. Precious metal denser than gold
  6. 8. Scientist behind pasteurization
  7. 11. Proposed evolution by natural selection
  8. 14. Purple variety of quartz
  9. 16. Natural light display near the poles
  10. 17. Most abundant element in the universe
  11. 18. Gas commonly used in balloons