3 Ergebnisse.

People have long been captivated by the beauty of gems, from diamonds and sapphires to rubies and emeralds. Kids will be interested to know how these precious rocks form. Through this helpful book, young gem lovers will understand the crystal structure that many gems have and how beautiful rocks form in nature.

Bits of rock are a key component of soil. The kinds of rocks found in soil determine what sorts of plants will grow well in it. This book is full of information that readers can use in their own investigations of soil and rocks.

Tree roots splitting a rock apart is an example of weathering, while a glacier pulling rocks along in its path is erosion. This informative book offers many examples of these two processes and outlines the key role they play in the rock cycle.