| A | B |
|---|
| artisan | a worker who is especially skilled at crafting items by hand |
| fertile | rich in the substances plants need to grow well |
| irrigation | supplying land with water through a network of canals |
| domesticate | to adapt wild plants or animals for human use |
| surplus | more than is needed |
| Stone Age | a period of time during which early humans made lasting tools and weapons mainly from stone; the earliest known period of human culture |
| nomad | a person who has no settled home |
| prehistory | before history; the events in the period of time before writing was invented |
| archeologist | a scientist who exmines object (artifacts) such as bones and tools to learn about past peoples and cultures |
| oral tradition | stories passed down through generations by word of mouth |
| geography | the study of Earth's surface and the processes that shape it. |
| civilization | a society with cities, a central government run by official leaders and workers who specialize in certain jobs, leading to social classes; characterized by writing, art and architecture |
| social class | a group or class that is made up of people with similar backgrounds, income and ways of living |
| irrigation | a system to water crops during dry summer months |
