Earth's rocky past

Examines how different types of igneous rocks form, change, erode, and are used around the world.

Examines how different types of crystals form, change, erode, and are used around the world.

Most people don't think about the soil under their feet, but basic dirt can reveal a lot about Earth's past. Soil is formed from tiny grains of rock that existed many years ago. It can also form in the wake of landslides, volcanoes, and everyday weathering. This text takes readers underground to examine Earth's many kinds of soil, the microorganisms and inorganic matter that make it up, and the critical role it plays in ecosystems around the world. Helpful diagrams, fact boxes, and sidebars support the information-rich text, which supports elementary science curricula, and colorful images will keep readers engaged from start to finish.

Minerals are the building blocks of rocks. Formed without any human assistance, these natural substances are used in almost everything people use on a daily basis. Readers will learn how minerals shape our lives and how they've shaped Earth's past and present, as well as how they'll shape Earth's future. The text explores the origins of minerals, where they're found, and why they're important. The age-appropriate text supports elementary science curricula, covering important Earth science and geology concepts. Exciting images show readers Earth's most dazzling minerals, while informative fact boxes and sidebars provide a comprehensive learning experience.

The rocks that cover Earth's surface wouldn't exist without crystals. Written to support elementary science curricula, this text encourages readers to get up close and personal with the crystals contained in Earth's rocks. Along the way, they'll learn important Earth science skills, such as how crystals form, how to identify crystals based on their physical properties, and where in the world they're found. The text also teaches readers how we use crystals in everyday life, and what kinds of hobbies and careers involve working with crystals. This information-rich text features engaging images, fact boxes, and sidebars, which offer opportunities for additional learning.

An introduction to sedimentary rocks, explaining what they are, how they form, different types, how they are used and other related topics, with instructions for an activity.

An introduction to metamorphic rocks, explaining what they are, how they form, different types, how they are used and other related topics, with instructions for an activity.

An introduction to igneous rocks, explaining what they are, how they form, different types, how they are used and other related topics, with instructions for an activity.

Introduces readers to soil, discussing where it comes from, how it is made, what types exist, and what we it for. Includes informative text, color photographs, a glossary, and a list of resources.

Learn about igneous rocks, including what they are and how they are formed.