Across
- 2. Reason why humans were able to out perform animals.
- 4. Place where humans first emerged.
- 6. Most important crop in early agriculture.
- 8. First used 1.5 million years ago for cooking food and defense.
- 10. Stone that was used in most tools by early humans.
- 12. Time period 10,000 years ago when farming was developed.
- 14. Place where farming was developed.
- 15. First tools used by humans.
Down
- 1. Developed to help with hunting, building relationships, and settling conflicts.
- 3. Reason why humans were able to grow a bigger brain
- 5. The process of changing plants or animals overtime to make them useful.
- 7. First version of humans 5 million years ago.
- 9. One of the oldest cities in history.
- 11. Economy where people trade goods and services instead of using money.
- 13. Reason why the world's population grew during the Neolithic Era.