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4. Growing crops on a regular basis according to annual farming practices
8. The name for early humans who were nomads. They followed herds and gathered wild plants and berries
9. Tools and techniques that people use to accomplish tasks
12. Referring to animals that are under the care of humans to be used to their advantage

1. A bridge made of earth that connected Asia and North America. Early people used it to travel to new parts of the world
2. Concentrating on a specific job or duty
3. People who travel from place to place in search of food
5. A time when early people used stone to make weapons and tools
6. The earliest period of the Stone Age
7. Art that was painted on the side of cave walls and usually depicted animals and hunters
10. The latest period of the Stone Age. Farming and the domestication of animals began
11. A long period of extreme cold