Rock on!

"This book provides a simple and fun introduction to soil, discussing what soil is, how it is made and what we use it for. With the help of some Rock Solid! facts that provide cool examples, the book will show you how amazing soil can be: from making houses with mud bricks and how crops grow in volcanic soil to how tree roots can break up rock"--From the publisher's web site.

"This book provides a simple and fun introduction to rocks, discussing different rocks, exploring how and why they have formed, how they have changed over time, their appearances and properties. With the help of some Rock Solid! facts that provide cool examples, the book will show you how amazing rocks can be: from the Grand Canyon and hot lava to the world's biggest cave"--From the publisher's web site.