1. Physical Features of South America

3. Sierra Madre Mountains
Part of the Western ranges, these mountains stretch from the southwestern United States to Honduras.
Sierra Madre Mountains

4. In southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico-separates the region of Central America from the rest of North America.
Yucatan Peninsula

5. A large arid-to-semiarid plateau that occupies much of northern and central Mexico; mostly covered by deserts and shrub lands, with pine-oak forests covering the surrounding mountain ranges and forming sky islands on some of the interior ranges.
Mexican Plateau

6. The longest continental mountain range in the world; form a continuous highland along the western edge of South America; extend from north to south through seven South American countries.
Andes Mountains

7. Peninsula in Northwestern Mexico
Peninsula in Northwestern Mexico. It separates the Pacific Ocean from the Gulf of California; separated from mainland Mexico by the Gulf of California and the Colorado River.
Baja Peninsula

8. A grouping of the larger islands in the Caribbean Sea; Cuba, Hispaniola (containing Haiti and the Dominican Republic), Puerto Rico, Jamaica, and the Cayman Islands.
Greater Antilles

9. Group of islands in the Caribbean Sea
Group of islands in the Caribbean Sea. Most form a long, partly volcanic island arc between the Greater Antilles to the north-west and the continent of South America. form the eastern boundary of the Caribbean Sea with the Atlantic Ocean.
Lesser Antilles

10. The largest river by discharge volume of water in the world and, according to some, the longest in length; the basin is covered by the Amazon Rainforest.
Amazon River and Basin

11. A plateau in South America, covering a 1,000-kilometre (600 mi) strip of land on the Pacific coast, west of the Andes mountains. It is the driest non-polar desert in the world.
Atacama Desert

12. A sparsely populated region located at the southern end of South America; comprises the southern section of the Andes mountains, the deserts, pampas and grasslands east of this southern portion of the Andes; two coasts: western facing the Pacific, eastern facing the Atlantic Ocean.
Patagonia

13. A sea of the Atlantic Ocean in the tropics of the Western Hemisphere; bounded by Mexico and Central America to the west and south west, to the north by the Greater Antilles- has the world's second biggest barrier reef.
Caribbean Sea

14. A marginal sea of the Pacific Ocean that separates the Baja California Peninsula from the Mexican mainland; thought to be one of the most diverse seas on the planet.
Gulf of California

15. Vast, fertile plains; South American lowlands, extending westward across central Argentina from the Atlantic coast to the Andean foothills.
Pampas