Eyewitness Science Earth Author:Susanna Van Rose What is at the center of the Earth? Why is sea water salty? Find out the answers to these and other questions in this new look at the Earth.
ISBN-13: 9781564584762 ISBN-10: 1564584763 Publication Date: 3/15/1994 Pages:64 Edition:1st American ed Reading Level: Ages 9-12 Rating: