| A | B |
|---|
| technology | the use of skills and knowledge to make the work of everyday life easier. |
| artifact | a human made object |
| specialize | to work at only one kind of job |
| domesticate | to tame plants or animals for human use |
| agriculture | the raising of domesticated plants and animals; farming |
| obsidian | a volcanic black rock often used by ancient people to make tools |
| oasis | a place in the desert that has a dependable source of water |
| ziggurat | a tall stepped tower built by the ancient Sumerians as a temple to a god |
| civilization | a society with developed forms of religion |
| descendant | a person who is descended from a certain ancestor |
| band | a small group of people made up of related families |
| nomad | a person without a permanent home |
| pastoral society | a group of people whose way of life depends on herding |
