Why Do Oceans Have Tides?

by Marian B. Jacobs

Kids will learn the difference between surface waves and the larger, worldwide movement of ocean water in the tides. They’ll be fascinated to discover that the Moon has its own gravity and that’s what influences the tides. This book will introduce your students to astronomy, geography, the ecology of tidal zones, and how humans can benefit from the power in the tides.

24 pages, Library Binding

First published January 1, 2003