Make a grid on paper with square size of 1 cm by 1 cm. Very carefully trace the outline of your hand on it. Estimate the area covered by your hand by adding the whole covered squares with those that are covered more than half. Compare the outline of your hand with any one of your family member.​

Atlantic Ocean is the second-largest of the world's oceans, with an area of about 106,460,000 km2 (41,100,000 sq mi).[2][3] It covers approximately 20 percent of Earth's surface and about 29 percent of its water surface area. It is known to separate the "Old World" from the "New World" in the European perception of the World.

Atlantic Ocean

Map of the Atlantic Ocean

Extent of the Atlantic Ocean according to the 2002 IHO definition, excluding Arctic and Antarctic regions

Coordinates

0°N 25°W[1]

Basin countries

List of bordering countries (not drainage basin), ports

Surface area

106,460,000 km2 (41,100,000 sq mi)[2][3]

North Atlantic: 41,490,000 km2 (16,020,000 sq mi),

South Atlantic 40,270,000 km2 (15,550,000 sq mi)[4]

Average depth

3,646 m (11,962 ft)[4]

Max. depth

Puerto Rico Trench

8,376 m (27,480 ft)[5]

Water volume

310,410,900 km3 (74,471,500 cu mi)[4]

Shore length1

111,866 km (69,510 mi) including marginal seas[1]

Islands

List of islands

Trenches

Puerto Rico; South Sandwich; Romanche

1 Shore length is not a well-defined measure.

File:Atlantic Ocean to Africa.ogvPlay media

This video was taken by the crew of Expedition 29 on board the ISS. The pass starts from just northeast of the island of Newfoundland over the North Atlantic Ocean to central Africa, over South Sudan.

The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and the Americas to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided into two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean at about 8°N.[6]

Scientific explorations of the Atlantic include the Challenger expedition, the German Meteor expedition, Columbia University's Lamont-Doherty Earth Observatory and the United States Navy Hydrographic Office.[6]