The document describes the five major oceans of the world: The Pacific Ocean is the largest ocean, covering one-third of the Earth's surface. Ferdinand Magellan named the ocean, which means "peaceful", due to calm waters when he sailed through it. The Atlantic Ocean's name refers to Atlas from Greek mythology and it is the second largest ocean, covering 20% of the Earth's surface. The Indian Ocean was named after India and is the third largest ocean, also covering 20% of the Earth's water surface. The Antarctic Ocean, also called the Southern Ocean, is the fourth largest and where cold Antarctic waters mix with warmer subantarctic waters. The