How much of the world is covered in water? What is the deepest-living fish? How are waves caused? Why are coral reefs in danger?

Take a journey beneath the waves and into the deep, and collect some bite-size facts about oceans, marine life, and sunken treasures along the way.

Fast Facts is a new series of high-interest, lower reading ability books aimed at fact-hungry children who enjoy information books but may be less confident readers or have difficulty with the usual quantity and level of text aimed at their age group.

This book is part of a book series called Fast Facts .

. This book is part of a HiLo reading scheme, combining high interest relative to the required reading skill.

There are 32 pages in this book. This book was published 2016 by Pan Macmillan .

The Kingfisher Children's Encyclopedia has been meticulously researched, compiled and checked by a team of more than 50 expert writers and consultants, each a specialist in their field.