Across
- 2. Humans used copper, during this age
- 3. When the Europeans came to America, and also came with new crops and farming tools
- 6. the process of developing or being developed.
- 8. Earliest known period of civilization
- 9. : a sudden, radical, or complete change
- 10. the application of scientific knowledge to the practical aims of human life or, as it is sometimes phrased, to the change and manipulation of the human environment.
Down
- 1. belonging to a society in which people live in a very simple way, usually without industries or a writing system
- 4. used in moving people and cargo from one place to another
- 5. alphabet came into use during this age
- 7. Period when printing press was invented