Across
- 1. an era known for agriculture
- 4. a person who moves from place to place
- 5. the material used to make tools during the paleolithic era
- 8. an era known as the "old stone age"
- 9. a method for helping humans survive the ice age
- 10. a change in history
- 11. the exchange and spread of goods and ideas through contact between people from different cultures
- 12. the area of land between the Tigris and Euphrates Rivers in the Middle East, also known as Mesopotamia
Down
- 2. a method of killing animals and looking for items to survive
- 3. to change a wild plant or animal so it can be grown or raised by humans; to tame
- 6. places where people live for long periods of time, possibly for their whole lives
- 7. farming