Across
- 2. Buying and selling of items between people
- 5. Time period when humans used simple materials like stone and wood
- 10. includes the Copper Age, the Bronze Age and the Iron Age
- 12. The beginning of human history until the invention of writing
- 13. The cultivation of plants for food
Down
- 1. Groups of humans who lived together in the Paleolithic Period
- 3. Process where humans extract metal from rocks
- 4. Period when people started living in villages
- 6. Important invention during the neolithic period
- 7. Period of the stone age that was longest. Humans were tribal nomads and hunted animals
- 8. Period when bartering began and the wheel was invented
- 9. Trading of food, goods, and animals
- 11. People who do not always live in one place. They follow animals to hunt them