Famous Scientists

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Across
  1. 5. leading architect and engineer in ancient Egypt
  2. 7. her book Silent Spring helped start the environmental movement
  3. 9. created the telephone
  4. 13. first used telescope to view planets and stars
  5. 14. created light bulb, phonograph and motion picture
  6. 15. electrical experiments led to invention of the lightning rod
  7. 16. first woman to win a Nobel Prize, won twice
  8. 17. developed general theory of relativity
  9. 20. with colleague Crick discovered structure of DNA molecule
  10. 21. contributed to modern alternating current (AC) electricity
Down
  1. 1. considered the world's foremost expert on chimpanzees
  2. 2. brothers who created first airplane
  3. 3. this educator and comedian had his own TV show
  4. 4. first woman in space, flew twice on space shuttle Challenger
  5. 6. discovered vaccines; founded science of germ history
  6. 8. often described as the world's first computer programmer
  7. 10. father of modern chemistry, first name Antoine
  8. 11. was a botanist, anatomist, engineer as well as an artist
  9. 12. first African American woman to travel in space
  10. 18. formulated the laws of motion and universal gravitational
  11. 19. botanist, called 'farmer's best friend'