Inventions and Discoveries

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Across
  1. 1. Alexander Fleming discovered ______.
  2. 2. Guglielmo Marconi is credited with inventing the ______.
  3. 3. Thomas Edison is known for his work with ______.
  4. 4. The Wright brothers invented the ______.
  5. 5. Antonie van Leeuwenhoek is credited with inventing the ______.
  6. 7. Lewis Waterman invented the fountain ______.
  7. 9. Alexander Fleming discovered the first ______.
  8. 10. Alexander Graham Bell invented the ______.
  9. 13. Tim Berners-Lee is known for inventing the ______.
  10. 14. Wilhelm Conrad Roentgen discovered ______.
Down
  1. 1. Gutenberg invented the ______.
  2. 6. Isaac Newton discovered the laws of ______.
  3. 8. Thomas Edison invented the ______.
  4. 11. James Watson and Francis Crick discovered the structure of ______.
  5. 12. George de Mestral invented ______.