Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
glacier |
thick sheet of ice that covered Earth's surface during the Ice Age |
|
migrate |
To move from one area to another |
|
theory |
one possible explanation for something |
|
artifact |
object made by people in the past |
|
archeologist |
scientist who studies the artifacts of people who lived long ago and draws conclusions from them |
|
ceremony |
activity done for a special purpose |
|
mesa |
high, flat, landform that rises steeply from the land around it |
|
drought |
long period without rain |
|
civilization |
culture with organized systems of government, religion, and learning |
|
surplus |
more than is needed |
|
specialize |
focus on one particular product, activity, or job |
|
slavery |
practice of owning people and forcing them to work |
|
tribute |
payment a ruler demands from people he or she rules |
|
empire |
large group of lands and peoples ruled by one leader |
|
pyramid |
building with three or more sides shaped like triangles that slant toward a point at the top |
|
Ice Age |
a long period of extreme cold |