How much of Earth's surface is covered by water? How do the northern lights get their colors? Planet Earth has been home to mankind for hundreds of thousands of years and while scientists have learned a lot about it, they're still unraveling many of its mysteries. B is for Blue Planet: An Earth Science Alphabet explains what we do know about our planet and what more we have to learn. Examine Earth's diverse ecosystems (deserts), discover geological...

"Acclaimed Harvard geologist Andrew Knoll delivers a sweeping and definitive new narrative history of Earth, charting our home planet's epic 4.6 billion year history and placing our current environmental crisis in deep context. The story of our planetary home and the organisms spread across its surface is far grander and more spectacular than any Hollywood blockbuster, filled with enough plot twists to rival a bestselling thriller. More than four...

Photographs and simple text introduce various landforms including rivers and lakes, mountains and valleys, deserts, canyons, caves, and volcanoes.

Presents information about various aspects of our planet in answer to such questions as "Why do stars twinkle," "Why are there mountains," and "Why do earthquakes happen?"

What s the weather like?  Make reading your superpower with DK s beautiful, leveled nonfiction. Use your reading superpowers to learn all about all types of weather - a high-quality, fun, nonfiction reader - carefully leveled to help children progress. Weather is a beautifully designed reader all about different types of weather, from sunny days to wind and storms.  The engaging text has been carefully leveled using Lexile so that children are set...

"A rumble. A tremple. A grumble. Growing, growling, getting hot. When will it... POP?! Using evocative storytelling, Nell Cross Beckerman leads children on an adventure through the radioactive wonders that are volcanoes. From deep down on the ocean floor to extraterrestrial volcanoes, Beckerman guides readers with dramatic, poetic language. Nonfiction text on every page allows for deeper understanding of the topic. Illustrator Kalen Chock's stunning...

Clean water is one of the leading environmental issues today. In this book, readers will learn about the importance, limited availability, and widespread pollution of clean water. Large-scale and personal solutions to water issues are also presented. Colorful and clear graphics, such as maps, charts, and infographics, give readers an alternative to text-heavy sources. Action-based activities will leave students with ideas for improving the world around...

Earth is changing every day. Erosion makes giant mountains smaller and rivers wider, but it happens so slowly most people don't even notice. Do you know what erosion is? Or what causes it? Explore the amazing eroding world in this book.

Young children are naturally curious about the world around them. Tell Me Why I See Rainbows offers answers to their most compelling questions about rainbows. Age-appropriate explanations and appealing photos encourage readers to continue their quest for knowledge. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.