top ten black inventors

123456789101112131415161718
Across
  1. 2. pioner in marine biology andzooaligy
  2. 5. invented patato chip
  3. 8. developeda 3-d optical illusion device
  4. 9. invented almanac
  5. 10. invented spring gun
  6. 14. procces to inovate apps
  7. 15. mesured and detected ultraviolet light
  8. 16. invented affordible elctric microphone
  9. 17. created a cotton choping device
  10. 18. invented refrigeration system for truck
Down
  1. 1. created ascrewfor a tobbaco press
  2. 3. invented automatic gear shifter
  3. 4. developed a specoial steam boat prpeller
  4. 6. invented early version torpedo
  5. 7. invented improved light bulb
  6. 11. invented super soaker
  7. 12. carver invented peanut butter
  8. 13. first to do open heart surgery