"Light and sound are two of the most important things in the universe. Without them everything would be dark and silent. Plants and animals would die. What scientists have found out about light and so
Discusses online safety, providing information on the dangers posed by identity theft, cyberbullying, and internet predators, and how to stay safe, and includes stories from teenagers about their expe
Presents an introduction to the Earth, discussing the atmosphere, hydrosphere, and geosphere; describing the ways they are being damaged by humans; and suggesting things people can do every day to hel
With an inviting contemporary design, each book in this career-planning series details the required skills and education for an array of professions while also providing a glimpse at day-to-day activi
With an inviting contemporary design, each book in this career-planning series details the required skills and education for an array of professions while also providing a glimpse at day-to-day activi
With an inviting contemporary design, each book in this career-planning series details the required skills and education for an array of professions while also providing a glimpse at day-to-day activi
With an inviting contemporary design, each book in this career-planning series details the required skills and education for an array of professions while also providing a glimpse at day-to-day activi
With an inviting contemporary design, each book in this career-planning series details the required skills and education for an array of professions while also providing a glimpse at day-to-day activi
Introduces quilting, discussing the materials needed, basic stitches, design, finishing, and four simple projects, along with a brief history and a description of the AIDS Memorial Quilt.
Traces the life and accomplishments of the thirty-second president of the United States, describing his leadership during the Depression and World War II, as well as his struggle with polio.
Chronicles the life of the sixteenth-century Dutch scholar and author, who attempted to reform the Catholic Church from within and whose writings dealt with many issues that would surface during the P
Describes the history, culture, and social customs of the native people who lived in the southeastern United States and who faced many challenges with the arrival of European explorers and settlers.
Profiles the life of the proud patriot and soldier who, along with Benedict Arnold, led the Green Mountain Boys in capturing Fort Ticonderoga from the British.
Describes the history, culture, and social customs of the native people of the northeastern United States coast who lived in present-day Massachusetts and faced many challenges with the arrival of Eur
Discusses the changes that come along with adolescence, including information on puberty, dating, and sex, and includes stories from teenagers about their experiences.
Describes various types of fuel cells and their functions, looks at some of the obstacles that stand in the way of using hydrogen fuel cells as a source of alternative energy, and discusses the future
A biography of the sixteenth-century cartographer Gerardus Mercator, who invented a method of projecting the curvature of the Earth's surface on to a flat sheet of paper.
Discusses topics pertaining to individual and national wealth, including various paths to financial success, negative behaviors associated with money, such as greed and envy, and factors that contribu
Discusses how certain viruses and bacteria can live and spread in food, leading to contaminations and outbreaks of illnesses in both animals and humans, and explains how to prevent foodborne illness w
Discusses the causes and effects of thunderstorms, sandstorms, tornadoes, and blizzards; looks at important people and events in the history of meteorology; and includes a science activity demonstrati
Describes the landforms that make up the Earth's surface, discussing how volcanoes, weathering, erosion, and glaciers work to constantly change the physical geography of the planet.
This book introduces you to the microscopic world of bacteria, from blue green algae to spirochetes. It examines how bacteria move, feed, and reproduce. It also looks at the benefits and drawbacks of
"From Earth's rising temperature to the declining supply of fossil fuels, our planet is changing, and not for the better. What can you do to help? Recycle. Buy local. Plant a tree. Turn off the lights
Whether readers are just learning the game or interested in learning more, this series will appeal to all young sports enthusiasts through descriptions of the rules, equipment, and strategies of the s
Presents an introduction to the way animals are classified, discussing Linnaeus's taxonomy, the different phyla of the animal kingdom, and the characteristics that the animals in each phylum have in c
Describes why wildfires occur, how they both damage and help revitalize an ecosystem, and what firefighting measures are taken each year to minimize loss of life and property during wildfire season.
Describes various types of robots and their functions, discusses technological advancements in the field of robotics, and considers the ethical issues surrounding autonomous robots.
Describes the treatment of prisoners of war held by both sides during the Vietnam War and discusses the torture inflicted on American prisoners of war, how their families tried to help them, and their
Presents an account of an uprising of farmers who could not pay taxes in Massachusetts in the 1780s, and discusses the government's response and the effect that the unrest had on the idea that the cou
