Our modern world runs on energy to power our homes and industries. We all know the problems with burning fossil fuels to create energy— it pollutes the planet and we are running out of these resources. Discover the facts about renewable and non-renewable energy resources, how our energy use contributes to global warming, and what the future of energy looks like.
Climate change is reshaping the planet before our eyes. From melting ice caps and rising sea levels to drought and destructive hurricanes, no corner of Earth is protected from the effects of global warming. Discover the facts about what climate change is doing—and will continue to do—to our planet, and how we might reduce its impact.
The huge variety of plants and animals that live on Earth is called biodiversity. As ecosystems are destroyed by climate change and human activity, plants and animals are becoming endangered and even extinct. Find out how the loss of biodiversity affects food chains and natural habitats, why it is important to humans, and how its loss threatens the health of all living things on the planet.
Scale models are usually built as accurate miniatures of real objects such as vehicles, buildings, and even people. This awesome introduction to model making explains the mathematics of scale, and the difference between building from a kit and building from scratch. Tips on painting, scoring, cementing, and weathering help build fine-motor skills. Young readers are encouraged to build patience, concentration, perseverance, and problem-solving.
The rebels on campus oppose more rules and regulations, but the computer system at Mayfair College is under attack. Is the hacker a mischief-maker or a dangerous criminal? Luckily, Jim Salvatori's past makes him the perfect cybercop and especially qualified to answer that question.
Pressure in the three main types of fault lines builds with a deadly force, giving little warning to people when an earthquake strikes--sending shock waves for hundreds of miles, potentially killing thousands with falling debris and creating deadly tsunamis.
A historical account of the Human Genome Project, including the events that made genome sequencing possible, the people involved, the competition between public and private sectors, and the ways in which its effects are felt today.
Content Includes: Prevention: The Best Cure, Getting Medical Attention, Handling Health Problems, Avoiding Health Hazards. 32 Compact two-page lessons are each tightly focused on a particular subtopic to guarantee comprehension and build a foundation for further practice and skill development. Back-of-the-book list of key words in each. Preview & Review exercises introduce & wrap up each unit. Includes "Everyday Math" application in every lesson.
Chemists study matter. The medicines we use, the chair you are sitting on, and the vehicles we drive are products that chemists helped produce. This compelling new book examines the many fields of work made possible because of chemistry.
Are you fascinated by insects? Welcome to the field of entomology. This book shows how entomologists study insects to learn about Earth’s history, find ways to prevent the spread of diseases some carry, use insects in agriculture, and much more. With an estimated 1.3 million species, there’s always something new in the world of insects.
Food scientists apply their knowledge of chemistry, biology, and other sciences to the study and analysis of food. This compelling title explains how food scientists search for ways to improve the ways food is grown and prepared commercially for thousands of people.
Biologists study life, from tiny organisms to the largest animals on Earth. This exciting new book takes a look at how biologists work in fields of study such as zoology, botany, ecology, microbiology, and molecular biology. Readers will learn how biologists work in the field and in labs, and how their work applies to the lives of every living thing on the planet.
Some commodities command massive economic, social, and political influence. This title examines the business around corn, the most ubiquitous crop in the United States. It explores corn’s many uses, complex supply chain, and attendant environmental debates. Features include essential facts, a glossary, selected bibliography, websites, source notes, and an index. Aligned to Common Core Standards and correlated to state standards.
Going wild. We don't see it as a good thing. And why would we? For most of our time on earth, humanity has been running from lions and other wilderness dangers. We've worked hard to make our local landscapes as safe and convenient as possible. Sometimes that's meant paving over areas that might burst into weeds. Other times, we've dammed rivers for electricity or irrigation. But now pollution, climate change and disruptions to the water cycle are affecting the world in ways we never anticipated. What if the new key to making our lives safer (and even healthier) is to allow the wilderness back into our cities?
Crystal meth is more addictive than heroin or cocaine and is widely available on the streets of North America. This helpful book looks at the use and abuse of meth, an inexpensive and accessible drug that takes an unbelievable toll on the bodies and brains of users. Special chapters on seeking help, and treatment and recovery provide accurate and useful information on meth addiction and treatment.
Did you know about one third of high school students take steroids to improve their looks, not just their athletic skills? Steroid use is becoming a major issue among 12- to 18-year-olds today. This helpful and informative book looks at the pressures young people are under to look cut and perform well in sports. Special chapters examine the effects of anabolic steroids on the developing bodies and minds of young people and how difficult it can be to quit when you've got the edge.
As our world's population grows, so to does our need for energy. Scientists seek the next breakthrough in new technology while constantly finding ways to make current solutions cheaper and more efficient. In this title, discover what methane energy is, its history, how we use it today, and how new technologies can contribute to our energy future. Learn how methane digesters work and how they can help people in the developing world, discover ways biogas might replace natural gas, and explore the potential future uses of methane hydrates. Sidebars, full-color photos, full-spread diagrams, well-placed graphs, charts, and maps, stories highlighting innovations in action, and a glossary enhance this engaging title.
Explains what early civilizations believed about natural disasters; highlights notable eruptions, earthquakes, fires, floods, droughts, famines, and diseases, as well as two noted military failures; and recounts the end of the ancient world.
This book tells the story behind the developments for people to communicate with one another from across the street to across the country.
Describes the deepest part of the ocean, called the abyss, and explains how, with new equipment and technology, humans are beginning to learn more about the abyss and the creatures who live there.
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 coal has historically been used as an energy source and how current and future energy demands are changing its technical applications and efficiency levels.
This title examines the remarkable lives of Chris DeWolfe and Tom Anderson, Mark Zuckerberg, and Jack Dorsey and their work building the groundbreaking social networking companies MySpace, Facebook, and Twitter. Readers will learn about Page and Brin's backgrounds and education, as well as their early careers. Also covered is a look at how these social networking companies operate and issues they face, such as responding to negative feedback, facing competition, and developing new tools and applications for users. Color photos, detailed maps, and informative sidebars accompany easy-to-read, compelling text. Features include a timeline, facts, additional resources, web sites, a glossary, a bibliography, and an index.
A look at the causes and global effects of the 1969 moon landing, which led to further space exploration and eventually encouraged international cooperation rather than competition.
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.
An account of espionage during the modern age, including famous spies such as Dayna Williamson Baer, covert missions, and technologies that influence the course of present-day conflicts.