Holly Keller has created vivacious new paintings for this favorite Let's-Read-and-Find-Out Science title about geology. Readers follow two enthusiastic rock hounds around the globe as they add to their collection. Along the way they will learn how sedimentary, metamorphic, and igneous rocks are formed. From the Egyptian pyramids to Roman roads, from the diamond ring on your finger to the pebbles under your feet'rocks are everywhere! This nonfiction...

Explains the phases of the moon--the changes that seem to happen to it as it goes around Earth.

Discusses how scientists, studying fossil remains, provide information on how dinosaurs lived millions of years ago.

Describes various scientific theories which explore the extinction of the dinosaurs.

Describes the parts of the hand and all the things our hands help us to do.

Introduces teeth, describing how many we have at various stages of life, why they fall out, and what they do.

Describes human growth and how the different parts of the body change as it grows.

Brief text and illustrations describe the various parts of the foot and all the things feet help us to do.

Explains how the sense of touch helps to identify everyday objects and familiar surroundings.

Describes such animals as snails, turtles, and crabs, which live in shells and use these coverings as protection.