Industrial Revolution Inventions Crossword Puzzle

QUESTIONS LIST:

• richard fly: founded american economic associations
• willhelm roentgen: discovered x-rays
• telephone: allowed humans to communicate across wires
• cotton gin: dramatically increased availability of cotton
• airplane: revolutionized international contact and relations
• passenger elevator: improved movement in buildings
• sewing machine: first automatic sewing machine
• social darwinism: applied theory of natural selection in society
• general cleanliness: dramatically improved surgical survival rates
• photograph: first photo took 8 hours, second one took 30 minutes and was permanent