Echoes

by Bernice Kohn Hunt

Book Overview

Describes the basic characteristics of echoes and how, by studying them, man has gained valuable information about the nature of sonar exploration and navigation. This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0897990374
• ISBN13: 9780897990370
• Release Date: June 1979
• Publisher: Dandelion Pr
• Length: 32 Pages
• Weight: 1.11 lbs.
• Age Range: 7 to 10 years
• Grade Range: Grades 2 to 5