| A | B |
|---|
| PLATEAU | a large, raised area of mostly level land |
| ISTHMUS | narrow strip of land that has water on both sides and joins two larger bodies of land |
| CORAL | rock-like substance formed of skeletons of tiny sea animals |
| PAMPAS | region of plains in Argentina, Uruguay and Brazil |
| TRIBUTARY | river or stream that flows into a larger river |
| Mexico | a country south of the United States |
| Central America | isthmus joining Mexico and South America |
| Caribbean | region that includes small islands made of coral and larger islands that are the tops of huge underwater mountains |
| South America | continent that contains many types of landforms, including the Andes |
| El Nino | warm ocean current that flows along the western coast of South America and affects weather patterns |
| elevation | the height of and above sea level |
| Andes | mountain system extending along the western coast of South America |
| Atacama Desert | desert in Chile |
| Patagonia | plains region in southern South America |
| Amazonian rain forest | tropical rain forest in South America |
| hydroelectricity | electricity generated by moving water |
| diversity | to add variety |
| Jamaica | island country in the Caribbean |
| Venezuela | country in northern South America |
| Brazil | largest country in South America |
| Columbia | country in northwestern South America |
| Chile | country on the southwestern coast of South America |
