EBOOK
About
Stones dot a dry lakebed. Each one is followed by a wandering trail left in the dirt. Did the stones move? This hi/lo title uncovers the mystery behind sailing stones. Readers will discover what sailing stones are, some of the first explanations of the phenomenon, and what truths scientists have uncovered. Profiles of notable sightings give specific examples of the history of sailing stones. A diagram provides a visual explanation of how the stones move.