num_pages: 72
description:  
   What is at the center of the Earth?  
   Why is sea water salty?  
   How was our atmosphere created?  
   What is a volcanologist?  
   How are mountains formed?  
   What does the ocean floor look like?  
 Find out the answers to these and many other questions in this fascinating new look at the Earth. Superb full-color photography of geological equipment, rocks, minerals, and 3-D models reveal the ideas and discoveries that have changed our understanding of the world in which we live.
language: English
title: DK Eyewitness Books: Earth
titlecomplete: DK Eyewitness Books: Earth
genres: Science, Childrens, Nonfiction
ratings_count: 70
series: DK Eyewitness Books
publisher: DK Children