Across
- 1. an extra supply of something
- 4. the use of skills and tools to meet needs
- 5. to do one thing well
- 6. beginning of agriculture
- 9. human existence
- 10. farming
- 13. the time before there was writing
Down
- 2. when people first used stone tools
- 3. the training of plants in animals
- 7. to move to a new place
- 8. moving to a place to meet their needs
- 11. an object to help accomplish a task
- 12. a long period of time