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