Learn about Earth's sun and moon from two children's perspectives.

"In the 1990s, scientists lived inside Biosphere 2 (Biosphere 1 is the Earth itself) for two years, trying to figure out if colonizing Mars would ever be possible. Now scientists don't live there but instead conduct all sorts of studies and experiments aimed to help us better understand our environment and especially understand what sort of things are happening to it due to climate change and other man-made problems. It's a unique take on the Scientists...

"Have you ever wondered how the moon was formed or why it changes shape in the sky? The moon's story began 4.5 billion years ago, but it continues to affect everything we do today, from weather to timekeeping. Award-winning science author Robert E. Wells explains how and why the moon matters in our lives-and for the future of space exploration"--

"A glacier may look forbidding and empty, but it provides a rich habitat for animals from the mountains to the sea. As the world's glaciers melt, their disappearance impacts not only the wildlife that calls them home, but also all life on earth. Back matter includes a glossary and an author's note about climate change"--

Fearless adventurers, set sail on a fascinating voyage down the world's most extraordinary rivers! Discover over 100 of the world's most incredible rivers in this fascinating title by Julie Vosburgh Agnone and illustrated by prize-winner Kerry Hyndman. Amazing Rivers takes readers of a tour of the world's waterways, revealing the animals that call them home, the societies that rely on them, and the environmental issues threatening them along the way....

A child describes how the earth, sun, and planets are part of our solar system, which is just one small part of the universe.

From Pacific beaches to deserts and Hells Canyon, there's a lot to see and do in Oregon. This state lies in the Pacific Northwest. Oregon introduces the state's history, geography, climate, economy, people, and places. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index.

"Geology meets treasure hunting with this field guide to rockhounding! If you've ever kept an interesting rock or shell, bought a polished stone from a gift shop, or even just enjoyed a 'gram of a really cool crystal, congratulations! You've already experienced a rockhounding adventure! Rockhouding for Beginners shows you how to take your rockhounding to the next level, providing everything you need to know from tips for finding local sources for...

Publisher Annotation: Cut-paper wizard Nikki McClure is a brilliant steward for the words of a pioneering environmentalist in this wondrous ode to clouds-and the scientific "language of the sky."