Across
- 3. invented the telegraph
- 6. built the first commercially successful steamboat
- 13. For every action there is an equal and opposite reaction.
- 14. (1571-1630) German astronomer who proved Copernicus' theory; developed the three laws of planetary motions (first law: the planets orbit the sun in ellipses and not circles)
- 15. (1473-1543) Polish astronomer who proposed that the sun is the center of the universe
- 16. invented the telephone
- 17. famous banking and finance business man
- 18. created process for converting iron into steel
- 20. farming with man power, animal power, and simple tools; growing just enough food to feed one's family
- 22. made improvements to the steam engine
- 23. (1561-1626) English philosopher who developed the Scientific Method
- 24. invented the mechanical reaper
- 25. [F=MA] ; Force = Mass x Acceleration
- 26. famous steel business man
Down
- 1. (1564-1642) Italian physicist and philosopher who was the first person to study the stars with a telescope
- 2. (1642-1727) English physicist and astronomer who developed the laws of motion and gravitation
- 4. invented the cotton gin
- 5. invented the light bulb
- 7. invented the steel plow
- 8. made the automobile affordable
- 9. famous railroad business man
- 10. An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction, unless acted upon by another force.
- 11. person who creates their own business
- 12. famous oil business man
- 19. made the first airplane flight
- 21. observe nature; formulate a hypothesis; develop testable predictions based on hypothesis; gather data from experiments or research; if hypothesis is true, then develop a general theory