There are seven continents on the Earth . Asia is the biggest of all of them . Europe has many countries located in it . Africa has both deserts and jungles in it . Asia ,Europe, and Africa are often called "the Old World " Australia is the largest island on the Earth . People call North and South America "the New World ".    There are five oceans on the Earth. The pacific ocean is the biggest. the Atlantic oceans lies between the old world and the new world .the Indian ocean is the only ocean named for a country . the Arctic and Antarctic oceans are both very cold.