Black Inventors

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Across
  1. 1. Railroad (Underground Railroad and a literal railroad)
  2. 4. Who invented the addition for the ironing board
  3. 9. Charles B Brooks invented this street big broom
  4. 10. What was Katherine Johnson's world-changing job for NASA's spacecraft?
  5. 12. What did Thomas L. Jennings invent and receive the patent?
  6. 13. he got soaked for his invention
  7. 15. genius; graduated the high school at 14, 2 degrees at 18
  8. 17. His invention is delicious; turns into something which is almost his last name
  9. 18. artificial heart pacemaker & resistor for electrical devices
Down
  1. 2. With his invention, you can travel up and down for miles.
  2. 3. the lawsuit was a big win
  3. 5. 1 selling toy in the US
  4. 6. The initials of his invention are the same as the initials of his name
  5. 7. lubricating cup
  6. 8. What does the middle name of Thomas L. Jennings stand for?
  7. 11. Who can be derived from the Tom & Jerry animation?
  8. 14. Light bulb improvement
  9. 16. Frederick McKinley Jones' invention is worldwide contribution