Science and Nature

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Across
  1. 5. Whose Theory of Relativity?
  2. 6. Unit of electrical power
  3. 7. Sense organ with vitreous humour
  4. 8. Discoverer of the Heliocentric model, Nicholas…
  5. 10. Insulin producing organ
  6. 14. Inventor of the Phonograph surname
  7. 17. Element with the atomic number 92
  8. 18. His dogs salivated at the sound of a bell
  9. 19. Discovered Penicillin, Alexander…
  10. 20. Disease caused by lack of vitamin C
Down
  1. 1. Inventor of the Hovercraft, Chris…
  2. 2. Fifth planet from the Sun
  3. 3. Planet whose day is longer than its year
  4. 4. Also known as quicksilver
  5. 9. Numbers with only two factors, 1 and itself
  6. 11. Seed of an oak tree
  7. 12. Element with the atomic symbol, Na
  8. 13. The study of living things
  9. 15. First Lunar Module to land on the Moon
  10. 16. Planet with the moon, Miranda