Seven continents: Asia, Africa, North America, South America, Antarctica, Europe and Oceania.
Four oceans: Pacific Ocean, Atlantic Ocean, Indian Ocean and Arctic Ocean.
Extended data
Seven continents dividing line:
Borders between Asia and Europe: Urals, ural river, Caspian Sea, Caucasus Mountains, Black Sea and Turkish Strait.
The border between Asia and Africa: Suez Canal, Red Sea and Mande Strait.
The dividing line between Asia and North America: Bering Strait
The dividing line between Asia and Oceania: Timor Sea and Arafura Sea
The dividing line between Europe and Africa: the Strait of Gibraltar
The dividing line between Europe and North America: Danish Strait
The dividing line between North America and South America: Panama Canal
The boundary between South America and Antarctica: Drake Strait
References:
Baidu encyclopedia-seven continents