Over the billions of years it has existed, Earth has seen constant change, from huge natural changes to the land to human-made constructions. Readers will get an up-close look at these changes, from ancient buildings built thousands of years ago to brand new islands that have formed naturally in recent years. They will also discover how scientists learn about things that happened long before anyone was around to keep records and find out what effects geological changes can have on humans and other life.

Product Description: From the burning heat of Dharan, Saudi Arabia to the icy cold of Antarctica, temperatures on Earth can have extreme variation from place to place. Readers will find out what life is like in these extreme places. They will also find out how conditions such as humidity and wind chill can affect the way extreme temperatures make us feel and learn how scientists study extreme temperatures in hard-to-reach areas such as ocean floors and mountaintops...read more

Product Description: "This book details the life and habits of leeches"--

Product Description: Math is everywhere when it comes to money! See how dollars and cents add up inside this book and how we need math to finish the tally! You'll need your math smarts to help figure out how much you can earn from chores or jobs, the best way to balance what you spend and save, how to calculate interest, and more...read more

Product Description: Have you ever wondered why "money makes the world go round"? This book introduces readers to basic personal finance skills. Real world examples help readers learn the importance of math skills for money management. Callouts prompt inquiry, further thinking, and close examination of photographs...read more

In the past, social scientists have relied predominantly on traditional models of work to understand women's experiences. These models, however, have been based on men's occupational experiences, which have been assumed to be the same for women. More recently, researchers and theorists from a variety of disciplines have begun to challenge earlier assumptions as inaccurate reflections of the realities for female workers. Newer studies have concentrated on the historical and social reasons for women's employment and career choices, including changes in economy, family, and social conditions. To provide a deeper understanding of women worker's realities by including the meaning they make of their work experiences, the editors have assembled the research of social scientists from various disciplines whose investigations focused exclusively on this subject. Their qualitative methodology provides a forum for women to voice issues, raise questions, and share self-reflections about their work experiences and the meaning they make of their work in the context of the rest of their lives. The common themes that are interwoven within the fabric of women's work experience are: the need to expand traditional definitions of what constitutes "work;" the fluid nature of boundaries between personal life and work life; the importance of the relational aspects of their work; the issues related to the uses of power at work; the role of work in the development of women's sense of self and personal identity; and the degree to which women's work experience is colored by discrimination and sexism.

Product Description: Bugs and insects have always fascinated children. This book in the Creepy Crawly Critters series introduces young readers to honey bees. Readers can discover physical characteristics, habitat, diet, and more.

Product Description: Math is everywhere when it comes to the weather! See what's brewing inside this book?and how we need math to finish the forecast! You'll need your math smarts to measure the temperature, calculate how far away a storm is based on the distance between the thunder and lightning, predict how much rain there will be in a month, and more...read more

Product Description: Bugs and insects have always fascinated children. This book in the Creepy Crawly Critters series introduces young readers to scorpions. Readers can discover physical characteristics, habitat, diet, and more.

Product Description: Have you ever wondered how to help your savings accumulate interest? This book introduces readers to investment strategies. Real world examples help readers learn the importance of math skills for money management. Callouts prompt inquiry, further thinking, and close examination of photographs...read more

Product Description: Why did the German people follow Adolf Hitler during World War II? Why did the Soviet Union switch sides partway through the war? How did U.S. women and racial minorities hope to use their participation in the war to change society at home? From the invasion of Poland to the dropping of atomic bombs, World War II: Why They Fought reveals the motivations behind World War II from all sides...read more

Product Description: Young children are naturally curious about animals. Chameleons Change Color offers answers to their most compelling questions about how chameleons camouflage themselves. Age-appropriate explanations and appealing photos encourage readers to continue their quest for knowledge...read more

Math is everywhere in the garden! You need math smarts to help measure a garden's area, calculate how many plants will fit in a plot, predict harvest dates, and more. It all adds up to a lot of fun!

Math is everywhere when it comes to fitness! You need math smarts to calculate target heart rate, measure physical activity, plan weekly workouts, predict winners, and more. It all adds up to a lot of fun!

Product Description: Explore the fascinating history of physical science! What are matter, motion, gravity, electricity, magnetism, and substances? Who first studied these concepts and why? And who built upon those early theories to take scientific understanding further? Fascinating timelines provide a visual representation of how physical science concepts developed over time...read more

With their long, slim, muscular bodies and flat tail, otters are incredibly strong swimmers. Readers will learn how these aquatic mammals hunt for fish and other prey in their watery homes. They will also find out how otters reproduce and raise their young, as well as how many types of otters are being threatened by the dangers of human activity.

Product Description: Falcons are remarkable hunters, capable of snatching prey right out of the air and reaching speeds up to 200 miles per hour. Readers will find out what these powerful predators eat, where they live, and how they use their amazing eyesight to locate prey...read more

Product Description: This book introduces readers to Chinese mythology, presents legendary characters and stories, and shows how Chinese myths have influenced our culture. Readers are engaged with historical content while sharpening their skills at analyzing images and identifying evidence.

Product Description: Young children are naturally curious about themselves. Tell Me Why I Get Sunburned offers answers to their most compelling questions about summer skin conditions. Age-appropriate explanations and appealing photos encourage readers to continue their quest for knowledge...read more

Product Description: Young children are naturally curious about themselves. Tell Me Why I Can't Eat Peanuts offers answers to their most compelling questions about allergies. Age-appropriate explanations and appealing photos encourage readers to continue their quest for knowledge...read more

Visit the Doctor! focuses on doctor visits while discussing steps children can take to practice healthy lifestyles. Readers are introduced to what may happen during a typical medical exam and specifics about the job of a doctor. Callouts prompt inquiry, further thinking, and close examination of photographs. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.

Product Description: Exercise! focuses on physical activity while discussing steps children can take to practice healthy lifestyles. Readers are introduced to facts about keeping your heart healthy and muscles strong and how they related to endurance, flexibility, and coordination...read more

Product Description: Practice Good Hygiene! focuses on hygiene skills while discussing steps children can take to practice healthy lifestyles. Readers are introduced to basic body care and why cleanliness is important. Body odor, bad breath, germs, and self-esteem are discussed...read more