Zoehfeld, Kathleen Weidner

Color illustrations and text discuss the history, science, and technology of how phones work.

In simple text, presents the three states of matter, solid, liquid, and gas, and describes their attributes.

Photographs and easy-to-read text introduce rocks and minerals, covering the rock cycle, fossils, gemstones, and rock types.

Color illustrations and text show five different ocean environments based on ocean depth and the animals that live in each.

Explores how mountains are made, including how Mount Everest grew from a flat plain under an ocean to become 29,028 feet tall!.

Presents information about the physical characteristics, behaviors, habitats, and life cycles of prehistoric mammals. Includes a quiz, color illustrations, and a glossary.