2. A long period of extreme cold
Ice Age
A long period of extreme cold

3. Land Bridge
A bridge made of earth that connected Asia and North America. Early people used the land bridge to travel to new parts of the world.

4. Neolithic Age
The latest period of the Stone Age. It is characterized by farming and the domestication of animals.

5. Domesticate
Referring to animals that are under the care of humans to be used to their advantage.

6. Growing crops on a regular basis according to annual farming practices
Sytemic Agriculture
Growing crops on a regular basis according to annual farming practices

7. Specialization
Concentrating on a specific job or duty. Specilization led to early people becoming experts in their field (farming, hunting, etc.) which made them more efficient.

8. A time when early people used stone to make weapons and tools
Stone Age
A time when early people used stone to make weapons and tools

9. The EARLIEST period of the Stone Age
Paleolithic
The EARLIEST period of the Stone Age

10. People who travel from place to place in search of food
Nomads
People who travel from place to place in search of food

11. Hunter- Gatherers
The name for early humans who were nomads. They would often chase herds and gather plants and berries along the way.

12. Cave Art
Art that was painted on the side of cave walls. This art typically depicted animals and hunters.

13. Tools and techniques that people used to accomplish tasks
Technology
Tools and techniques that people used to accomplish tasks