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16 Cards in this Set
- Front
- Back
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Ice Age |
period during which low temperatures caused large areas of Earth's water to freeze |
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migrate |
to move from one area to another |
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artifact |
object made by people in the past |
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ceremony |
activity done for a special purpose |
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glacier |
thick sheet of ice that covered the Earth's surface during the Ice Age |
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theory |
one possible explanation for something |
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archaeologist |
scientist who studies the artifacts of people who lived long ago and draws
conclusions from them |
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mesa |
high, flat landform that rises steeply from the land around it |
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drought |
long period without rain |
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surplus |
more than is needed |
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pyramid |
building with three more or more sides shaped like triangles that slant toward a point at the top |
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tribute |
payment a ruler demands from people he or she rules |
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civilization |
culture with organized systems of government, religion, and learning
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specialize |
focus on one particular product, activity, or job |
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empire |
large group of lands and peoples ruled by one leader |
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slavery |
practice of owning people and forcing them to work |
