South America is the fourth biggest mainland in size and the fifth-biggest in the populace. Most of the area of South America is on the southern side of the equator. It is circumscribed by the Atlantic Ocean to the east and The Pacific Ocean to the west. The topography of South America is commanded by the Andes Mountain Range and the Amazon River. List of countries of South America 1. Argentina 2. Bolivia 3. Brazil 4. Chile 5. Colombia 6. Ecuador 7. Guyana 8. Paraguay 9. Peru 10. Suriname 11. Uruguay 12. Venezuela Some Facts about South America: 1. The most elevated point in South America is Cerro Aconcagua in the Andes Mountains in Argentina. 2. The biggest South American nation in both size and populace is Brazil. 3. Sao Paulo, in Brazil, is South America's biggest city, which is additionally one of the biggest urban population on the planet. 4. North and South America were named after Italian pioneer Amerigo Vespucci.