Across
- 1. extra supply of something
- 3. farming
- 7. the training of plants and animals
- 9. human existence
- 11. phone, tablet, laptop
- 13. new stone age
Down
- 2. old stone age
- 4. long time period
- 5. time before writing
- 6. people who travel from place to place
- 8. to do one thing well
- 10. an object that helps you do stuff
- 12. move to a new place