Atlantic Ocean

The Atlantic is a huge ocean.

It sits between many lands. It lies between the Americas and Europe or Africa.

The ocean is shaped like the letter S. It is very deep and very wide.

There are mountains under the water. These mountains are called the Mid-Atlantic Ridge.

Water temperature changes in the ocean. The warm parts are near the middle. The cold parts are near the top and bottom.

Some people call it the "great pond." This is a funny way to say it is small. But the ocean is actually very big.

Ships use the ocean to move things. It helps people trade with each other. The Atlantic is a big part of our world.

The Atlantic Ocean is the second largest ocean.

It covers about 17% of Earth's surface. The ocean has an S-shape. It sits between the Americas and Europe and Africa. It connects to other oceans too. These include the Arctic and Indian oceans.

Under the water, there is a huge mountain range. We call this the Mid-Atlantic Ridge. This ridge divides the ocean into two halves. It rises up from the ocean floor. In some places, it reaches the surface. This creates volcanic islands like Iceland.

The water temperature changes in different spots. The South Atlantic stays warm all year. This is because it is near the equator. The North Atlantic has many seasons. It can be very hot or very cold.

People use the ocean for many things. Ships move goods across the water for trade. In the past, explorers like Christopher Columbus sailed here. He sailed in 1492. Today, the ocean is still a main part of world trade.

The Atlantic Ocean is a huge part of our world. It is the second largest ocean on Earth.

This ocean covers about 17% of the entire planet's surface. It also holds about 24% of all the water on Earth. The ocean has a long, S-shaped basin. It sits between the Americas to the west and Europe and Africa to the east. It is a vital part of how our world works. It connects to many other oceans through different paths. These include the Arctic Ocean in the north and the Indian Ocean in the southeast.

Deep under the waves, the ocean floor is not flat. A massive underwater mountain range called the Mid-Atlantic Ridge runs through the middle.

This ridge divides the ocean into two main halves. It rises up about 2 to 3 kilometers from the seafloor. In some spots, the ridge reaches all the way to the surface. This creates volcanic islands like Iceland and the Azores. The ridge is also a place where the Earth's plates move apart. This movement can create volcanoes and new ocean floor. This process is known as seafloor spreading.

Humans have a long history with this great sea. Ancient Greek writers mentioned it a very long time ago. They called it the "Sea of Atlas." They believed it was a great river surrounding all land. Much later, during the Age of Discovery, explorers sailed these waters. The Norse were the first known humans to cross it. However, Christopher Columbus had a very famous trip in 1492. His journey led to many European powers exploring the Americas. This changed the history of many nations forever.

The ocean's water can feel very different depending on where you are. The South Atlantic stays warm all year long. This is because it is near the tropical equator.

The North Atlantic is quite different. It has a temperate climate with many seasons. This means the water can be very hot or very cold. The surface temperatures can range from below -2°C to over 30°C.

These changes happen because of the sun and ocean currents.

Today, the Atlantic Ocean is still very busy. It is a core part of global trade. Huge ships carry goods from one country to another across the water.

In the past, people even used the term "the pond" to talk about it. This was a funny way for people in Britain and America to speak. They used it to show how connected they were across the water. Even though it is a massive ocean, it feels like a bridge between lands. It remains a vital path for the whole world.

The Atlantic Ocean is the second largest of Earth's five oceanic divisions. It covers approximately 17% of the planet's surface. It also contains about 24% of the world's water surface area.

The ocean forms an elongated, S-shaped basin. It stretches between the Americas to the west and Europe and Africa to the east. This massive body of water is a vital part of the interconnected World Ocean. It connects to the Arctic Ocean in the north. It meets the Pacific Ocean in the southwest. It merges with the Indian Ocean in the southeast. It also connects to the Southern Ocean in the south.

The Atlantic is divided into two main sections by the Equator. These are the North Atlantic and the South Atlantic. The North Atlantic covers 41,490,000 square kilometers. This represents about 11.5% of the global ocean. The South Atlantic covers 40,270,000 square kilometers. This is about 11.1% of the global ocean.

Water temperatures vary greatly depending on location. The South Atlantic remains warm year-round because its basin countries are tropical. The North Atlantic has a temperate climate. This means it experiences seasons with both very high and very low temperatures. Surface temperatures can range from below -2°C to over 30°C.

Deep beneath the waves, the ocean floor is shaped by complex geology. The bathymetry, or the measurement of ocean depth, is dominated by the Mid-Atlantic Ridge (MAR). This is a massive submarine mountain range. It runs from 300 km south of the North Pole down to Bouvet Island. The MAR rises 2 to 3 km above the surrounding seafloor. It acts as a divergent boundary. This means the tectonic plates are moving apart at this location. In the North Atlantic, the North American and Eurasian plates move apart. In the South Atlantic, the South American and African plates move apart. This process creates basaltic volcanoes and pillow lava on the ocean floor.

The Mid-Atlantic Ridge is not a continuous wall. It is interrupted by large transform faults. These include the Romanche Trench near the Equator and the Gibbs fracture zone. These faults allow deep water currents to pass from one side of the ridge to the other. Some parts of the ridge rise above the water to form volcanic islands. These include Iceland, the Azores, and the Brazilian Atlantic Islands. Exploration of this ridge in the 1950s helped scientists accept the theories of seafloor spreading and plate tectonics. In the 1870s, the Challenger expedition first discovered parts of this ridge. Later, the German Meteor expedition used echo-sounding in the 1920s to find more.

The Atlantic floor features many different landforms. There are wide continental shelves off Newfoundland and northeastern Europe. Most of the Atlantic is surrounded by passive margins. However, some areas have active margins that form deep trenches. The Puerto Rico Trench is the deepest point in the western Atlantic at 8,376 meters. The South Sandwich Trench is another deep point at 8,264 meters.

The ocean floor also contains abyssal plains, seamounts, and submarine canyons. In 1922, the USS Stewart used a Navy Sonic Depth Finder to map the bed. This device uses sonar, which sends sound pulses that bounce off the floor. This technology allowed for a continuous map with very little guesswork.

Human history has been deeply shaped by the Atlantic Ocean. Ancient Greek writers like Stesichorus and Herodotus mentioned it. They called it the "Sea of Atlas." They believed it was a great river surrounding all land. During the Age of Discovery, the ocean separated the "Old World" of Afro-Eurasia from the "New World" of the Americas. The Norse were the first known humans to cross it. However, Christopher Columbus's 1492 expedition was the most consequential. His voyage led to the exploration and colonization of the Americas by European powers like Spain, Portugal, France, and the United Kingdom. This era included the Columbian exchange and the Atlantic slave trade.

Today, the Atlantic remains a central part of global systems. It is a core component of international trade. Major military conflicts have occurred here, such as the Cuban Missile Crisis and the Falklands War. Even in modern times, the ocean connects people. Some English speakers jokingly call it "the pond." This term dates back to 1640. It emphasizes the connection between Britain and its former colonies. Whether through trade or history, the Atlantic remains a bridge between continents.