It seems that there is only one big ocean in the world, because all oceans flow into each other. But there are five main oceans: Atlantic Ocean, Pacific Ocean, Indian Ocean, Arctic Ocean, and Antarctic Ocean.

Pacific Ocean is the largest and deepest ocean, covering about one-third of the Earth’s surface.

Atlantic Ocean is the second-largest ocean, separating the Americas from Europe and Africa.

Indian Ocean is the third-largest ocean, bordered by Africa, Asia, Australia, and the Southern Ocean.

Also called Southern Ocean, Antarctic Ocean consists of water surrounding Antarctica.

Arctic Ocean is the smallest and shallowest ocean, located around the North Pole and largely covered in sea ice.