Reading essentials in science. Earth explorations

Presents a timeline of the earth's evolution and provides information on rocks and fossils and prehistoric time periods.

Presents an introduction to geology, the study of Earth and its features, describing various minerals, crystals, and rocks, and including discussion of rock recycling, mining, and the uses of rocks and minerals.

Presents a timeline of the earth's evolution and provides information on rocks and fossils and prehistoric time periods.

Describes each phase of the water cycle, discussing how it impacts everyday life, and includes related experiments.