A look at a common food chain in a North American desert, introducing the mesquite tree that starts the chain, the coyote that sits atop the chain, and various animals in between.
A look at a common food chain in the Rocky Mountains, introducing the ponderosa pine tree that starts the chain, the mountain lion that sits atop the chain, and various animals in between.
A look at a common food chain in the Arctic tundra, introducing the Arctic willow that starts the chain, the wolf that sits atop the chain, and various animals in between.
A narration of the origins, advancements, and future of the life sciences, including botany and zoology, and the ways in which scientists utilize the scientific method to explore questions.
An exploration of Grand Teton National Park, including how its mountainous landscape was formed, its history of preservation, and tourist attractions such as the waterfall known as Hidden Falls.
An in-depth look at the people and policies behind the government agency known as the EPA, from its founding in 1970 to the controversies and challenges it faces today.
An exploration of Rocky Mountain National Park, including how its mountainous landscape was formed, its history of preservation, and tourist attractions such as the towering summit of Longs Peak.
An exploration of Big Bend National Park, including how its desert canyons were formed, its history of preservation, and tourist attractions such as the hiking route called Chimneys Trail.
An exploration of Badlands National Park, including how its carved landscape was formed, its history of preservation, and tourist attractions such as the rock formation known as the Badlands Wall.
Why has coal been such a prominent energy source? How can renewable energies be stored most effectively? Linking science to practical applications and social issues to realistic goals, this new series orients ecologically conscious readers toward the future of Harnessing Energy. With a special section on historical moments involving the energy source, details on key inventors and notable discoveries, and statistics to back up objective reports, each title seeks to present a fully contextualized history of the featured energy form. A must-have for any STEM unit dealing with energy studies. In this title examine the ways in which water has historically been used as an energy source and how current and future energy demands are changing its technical applications and efficiency levels.
An exploration of Yosemite National Park, including how its mountainous landscape was formed, its history of preservation, and tourist attractions such as the granite monolith called El Capitan.
An exploration of Everglades National Park, including how its wetlands-rich landscape was formed, its history of preservation, and tourist attractions such as the bus route called Tram Road.
An exploration of Grand Canyon National Park, including how its enormous canyon was formed, its history of preservation, and tourist attractions such as the overlook called Mather Point.
An exploration of Great Smoky Mountains National Park, including how its mountainous landscape was formed, its history of preservation, and tourist attractions such as the historic settlement called Cades Cove.
This title highlights all the gross animals and the habits and habitats they thrive in.
Drew thought spending the summer in Florida with his little sister Maddie was the worst thing that could happen to him. He was wrong. When their plane crashes in a swampy, crocodile-infested wilderness, Drew and Maddie must rely on each other to survive.
Features 12 super-camouflaged animals found around the world. Each spread contains fascinating facts, life cycle and habitat information, and interesting traits that help each animal camouflage itself.
Features 12 super-dangerous animals found around the world. Each spread contains fascinating facts, life cycle and habitat information, and interesting traits that make each animal dangerous.
Taking information out of one living thing and putting it into another is what genetic engineering is all about. How do scientists do it? Why do they do it? What are the results of their experiments with these amazing genetic materials? Through colorful photos, diagrams, and stories, you can understand the basics of genetic engineering. You can even see what the future of this science holds, from Enviropigs to designer pets!
What happens to the environment when wildfires occur? What are some of the causes of wildfires? What can people do about the problems caused by wildfires? How can you use your math skills to learn more about wildfires? Read this book to find the answers to these questions and learn more about wildfires.
Oil is one of our most important natural resources. The searches for new sources - and options for alternative sources - are outlined here.
For years, people have used water power to provide electricity. This study recaps that history and describes exciting new techniques.
Recent advances in harnessing energy from the wind, sun, and tides are explored. People are encouraged to seek resources beyond fossil fuels.
We currently rely on nonrenewable sources, such as oil, for most of our fuel. Scientists are working on new fuels from crops and other materials to help ease future dependence on nonrenewable resources.
This captivating title looks at extinction--from the dinosaurs, 65 million years ago, to the possible extinction of species in our world today.
