Across
- 2. Conducted important research among children
- 3. Hall of fame
- 7. Attempted to understand how race and ethnic differences
- 8. Taught himself mechanic and electric engineering
- 9. An Africa American chemist, who contributed to the science of food preservation
- 10. Free astronomer
- 13. Helped poor southern families with their crops and improve their dept
- 14. First person to discover that insects hear
Down
- 1. Patented a shoe lasting machine
- 3. African American inventor who was awarded a patent for the irony board
- 4. Public welfare medal, went to Harvard, and Taught middle school
- 5. his research led to treat arthritis
- 6. First black women to complete nurses training
- 10. First black Ph.D
- 11. The only inventor to be identified in the patent as a colored man
- 12. An american ophthalmologist, inventor and academic