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7 Continents And 5 Oceans

The 7 continents of the world are North America, South America, Antarctica, Europe, Asia, Africa, and Australia. The 5 oceans of the world are the Atlantic Ocean, the Indian Ocean, the Pacific Ocean, the Southern Ocean, and the Arctic Ocean.

One of the most fascinating scientific topics is the study of the 5 oceans and 7 continents. The reason for this is that, even though most of us study the world’s oceans and continents at school, very often we found ourselves in conversations where people do not seem to agree on the exact number of continents and oceans.

When we contemplate the whole globe as one great dewdrop, striped and dotted with continents and islands, flying through space with other stars all singing and shining together as one, the whole universe appears as an infinite storm of beauty. – John Muir

Can you name the 7 continents of the world?

And even when we know that the correct number is 7 continents and 5 oceans, it is more challenging than it may initially seem to name them all.

Why does studying continents and oceans so important? Because if you want to understand Planet Earth, you really need to understand the planet’s surface. Most of the surface is actually covered in water (about 70%). More than 95% of it is saltwater. This saltwater surface has been organized into 5 distinct oceans, whereas the relatively small land surface we have organized into 7 distinct continents.

Four Continents Five Continents Six Continents Six Continents (Alt.) Seven Continents
Afro-Eurasia Africa Africa Africa Africa
America Eurasia Asia Eurasia Asia
Antarctica America Europe North America Europe
Australia Antarctica America South America North America
Australia Antarctica Antarctica/Oceania South America
Australia Australia Antarctica/Oceania
Australia

What are continents? 

At its most basic, we could say that continents are the areas of our planet’s surface that are not underwater.

Anyone with a sharp mind would immediately pick holes in that definition. Why? Because the shapes and boundaries of continents are always changing. As oceans rise, continents become, by that definition, smaller.

But not only that, the land masses that we now call continents are the result of shifts that broke up a supercontinent that scientists have called Pangea. It would be a mistake to think that the shifts that created the 7 continents have stopped. These shifts continue and will create new continents in the distant future (we are talking about hundreds of millions of years from now).

How many continents are there?

Although the number seven is the most common for continents, there are two other widely spread and fairly accepted number of continents.

It used to be believed that there were only 5 continents. Indeed, some people still believe to be the case. The five continents would be the following:

Other people believe that there are 6 continents, as follows:

But, by far, the most commonly agreed number of continents is 7:

Whether you believe there are 5, 6, or 7 continents would largely depend on when and where (i.e., which country) you went to school. Some people would also take the landmass that encompasses Europe and Asia as one whole known as Eurasia. There is also a common misconception concerning Australia (the continent) and Australia (the country). The continent known indistinctly as Australia or Oceania should not be confused with the country of Australia, for Australia (the continent) includes Australia, Tasmania, New Guinea, and New Zealand, as well as Polynesian and Micronesian islands.

The Continents

Africa 

This continent has a landmass of 11,670,0000 square miles or 28,489,869 square kilometers.

Africa is the second continent on the planet both in terms of size and population (1,119,307,147 as of 2016).

It is estimated that about 15% of the world’s population currently lives in Africa.

With the equator traversing the African continent roughly through its middle, Africa has distinct climatic regions. The areas immediately north and south of the equator have climates that vary from warm to tropical or a combination of both. The far north and the far south are, in contrast to the central areas, relatively temperate.

Because of this climatic diversity, Africa is home to many different animal and insect species that are unique to the continent. Elephants, hippos, and giraffes are just some of the animals that have made Africa globally famous.

From a historical perspective, Africa is hugely important as it is now credited to be the birthplace of humankind.

Present-day Africa is made up of 54 independent countries, most of which are the result of continent-wide independence and decolonization movements in the 20th century. Some of the arbitrary borders that were drawn by the former colonial overseers have resulted in bloody conflicts in many different parts of the continent.

Antarctica

This continent has a land mass of 5,405,000 square miles or 12,949,940 square kilometers.

Antarctica is, by far, the most sparsely populated continent on Earth, with a population of only 4,912 people as of 2015.

Antarctica is mostly known for being the southernmost continent on our planet. Because of its geographical position in the South Pole, Antarctica suffers the coldest temperatures on Earth, sometimes reaching -130°F (-90°C).

With those harsh weather conditions, it is hardly surprising that this continent is so sparsely populated. Its largest “city” is the McMurdo Station where, as of 2013, only 1,258 people live.

Antarctica is one of the smallest continents on Earth, only larger than Europe and Australia. But, even though Antarctica is larger than Europe, its population is a lot smaller in size. In fact, Antarctica has the smallest population of all 7 continents.

Asia

With a land area of 17,210,000 square miles or 44,029,797 square kilometers, Asia occupies about 9% of our planet’s surface.

Asia is also the most widely populated continent on Earth with a population of 4,494,302,221 as of 2016. This means that almost 60% of the world’s population lives in Asia.

Because of the sheer size of its population and the rising economies of many of its countries (India, China, South Korea, Japan, etc.), Asia is one of the most important countries in terms of the world’s economy.

Australia 

This continent has a land area of 2,970,000 square miles or 5,179,976 square kilometers. As of 2016, its population is 39,901,000, making it the second least populated continent on Earth, only behind Antarctica.

This continent has long fascinated botanists and biologists due to the uniqueness of the hundreds of different plant and animal species that are unique to this continent. The fact that the overwhelming percentage of animal and plant specifies present in Australia cannot be found anything else in the world is due to Australia’s remoteness.

Apart from its many different animal and plant species, this continent is also globally famous because it is home to the biggest reef in the world: The Great Barrier Reef.

Europe

Many different European civilizations have shaped the world because of their historical impact not just in Europe itself but also in every other continent on earth due to imperialistic expansion and its subsequent colonialism. Testament to this is that European languages (chiefly, English, Spanish, Portuguese, French, and Russian) are widely spoken in every other continent, mostly in North and South America (Spanish, English, French), Africa (English, French, Portuguese, Spanish), Asia (Russian, English, French, Portuguese), and Australia (English).

North America

Mostly due to the global economic powerhouses that are Canada and, mostly, the United States, North America is the richest continent in the world. This is in terms of  Gross domestic product (GDP) per capita, which is the largest of all the continents.

South America

The 5 Oceans:

Although for hundreds of years, the global consensus was that there were 4 oceans, in the 21st century this number was officially increased to 5 when in the year 2000 the International Hydrographic Organization decided almost unanimously to include the Southern Ocean.

So, the list of the 5 oceans is now as follows:

Pacific Ocean

“The history of exploration has never been driven by exploration. But Columbus himself was a discoverer. So was Magellan. But the people who wrote checks were not. They had other motivations.” – Neil deGrasse Tyson

Atlantic Ocean

Indian Ocean

Arctic Ocean

Southern Ocean

So, how many continents and oceans are there, really?

When it comes to the study of the continents and oceans on planet Earth, we need to recognize that the number of continents and oceans (and sometimes the terminology we use) has changed and new perspectives are put forward and new consensuses are reached by the scientific community. And, although, we must always acknowledge any possible discrepancies we have to always work on the basis of the current scientific consensus. And right now, in 2017, the scientific consensus is that there are 7 continents and 5 oceans.

View Comments

  • if a major glaciel formations breaks away from the Antartic n has not melted -- will it count in the sq mileage measure ... fyi if so the sq mi measure for most continents would vary when they experience their springs (more ice bergs)

  • Your information was completely off and actually didnt make any sense if Europe is bigger in landmass then Australia how is it the smallest continent in the world. And how can the third largest city be Mexico city if its behind 3 other cities and many other mistakes you should proof read a few more times. I'm not trying to sound rude very interesting stuff but needs some editing.

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  • Australia isn't a continent, it's a country. The continent that Australia is a part of is called Australasia or Oceana.

  • It still makes no sense separating the Americas in two continents. If the Panama channel is the only reason why some scholars insist in doing so, then Europe and Asia should not be considered two separate continents, because there´s no single body of water separating them.
    North and South America are actually subcontinents, and not continents at all. Besides, the modern concept of continents does not consider simply landmasses, but rather political divisions. In that sense we could say that splitting America in two continents could be valid, but if that was the case then we should spare it in its three subcontinents which are North, Central and South America, and not only two.
    As a side note, there´s not any evidence that the 7-continent model is "by far the most common agreed" model. That may be true to most English-speaking countries, but for all Latin countries, Europen countries and many countries in the Middle-East, America is common said to be a single continent.