Undersea World (A True Book: Greatest Discoveries and Discoverers)

Though explorers have been searching Earth's deepest waters for many years, experts estimate that we have explored only about five percent of the global ocean.
Readers (Grades 3-5) will learn about the history of deep-sea exploration, from the creation of the earliest submersibles to today's high-tech expeditions to the planet's deepest points. They will also find out what we've discovered underwater so far and what lies in store for the future of deep-sea exploration.

Desi exploratorii au cautat in cele mai adanci ape ale Pamantului de multi ani, expertii estimeaza ca am explorat doar aproximativ cinci la suta din oceanul global. cele mai vechi submersibile la expeditiile de inalta tehnologie de astazi in cele mai adanci puncte ale planetei.