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Hist. U1 Ch. 1 Terms
| Term | Definition |
|---|---|
| Ice Age | long period of extreme cold that caused much of Earth's water to freeze. |
| glacier | thick sheets of ice. |
| migrate | to move to another place. |
| theory | possible explanation. |
| artifact | an object that someone made in the past. |
| archaeologist | one who studies artifacts of people. |
| ceremony | activity done for a special purpose or event. |
| mesa | "table" in Spanish; a high, flat landform that rises steeply from the land around it. |
| drought | a long period without rain. |
| civilization | culture with organized system of government, religion, and learning. |
| surplus | more than is needed. |
| specialize | do only one kind of job. |
| pyramid | building shaped like a triangle. |
| empire | a group of lands and peoples ruled by one leader. |
| tribute | payment demanded by rulers from the people they rule. |
| slavery | the practice of holding people against their will. |