| 1. Assembly line | a) Alexander Graham Bell | |
| 2. | Theory of Relativity | b) Albert Einstein |
| 3. | Telescope | c) Galileo Galilei |
| 4. | Electric light | d) Karl Benz |
| 5. | Ball-point pen | e) Henry Ford |
| 6. | Matches | f) Zacharias Janssen |
| 7. | Microcsope | g) William Blackstone |
| 8. Automobile | h) Ladislo Biro | |
| 9. Telephone | i) Thomas Edison | |
| 10. Washing machine | j) John Walker |
If you don't know the answers you may use the Internet site
http://inventors.about.com to find them.
5. Choose one of the inventions and present the story of its development for your classmates. Use the following plan:
1. Name of the inventor.
2. Invention.
3. Reasons for making such an invention.
4. Benefits for a society.