Learn how it felt to live through the 9-11 attacks and how America changed - for better and worse - in the years that followed. Includes a glossary, websites, and other resources.
Learn how the Civil War touched the lives of all Americans and impacted the politics, economy, and culture of the nation. Includes a glossary, websites, and other resources.
Learn about the series of protests and civil actions that made the Civil Rights Era one of change, conflict, and new hope. Includes a glossary, websites, and other resources.
El libro explora cómo la actividad humana afecta a nuestro planeta y descubre como podemos contribuir a la disminución de estos efectos.
With real world examples of science at work, this book focuses on the impact of invasive plants on the environment.
With real-world examples of science at work, this book introduces the consequences of the spread of invasive species.
With real-world examples of science at work, this book introduces the benefits of constructing homes using ecologically friendly materials.
This book explains why whales are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why gray wolves are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why gorillas are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why giant pandas are endangered, what human activities have put them at risk, and what can be done to save them.
Aprende sobre la vida de cada planta y animal de este hábitat y cómo los humanos podemos ayudar a protegerlo.
En el libro aprenderás qué son los glaciares y que pasará si desaparecen.
This book provides an understanding of the impact that humans have on Earth and suggests ways to reduce damage to the environment.
This book describes the importance of wetland areas to Earth's ecosystem and discusses threats against areas such as the Everglades and the Arcata Marsh and Wildlife Sanctuary, along with the efforts to restore and protect wetland areas.
This book explains why sea turtles are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why whooping cranes are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why Steller sea lions are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why manatees are endangered, what human activities have put them at risk, and what can be done to save them.
This book explains why cougars are endangered, what human activities have put them at risk, and what can be done to save them.
In graphic-novel format, this book examines the history of the Chicago fire in 1871 while providing a story that brings to life one family's struggle to survive the devastation.
This book explains why bats are endangered, what human activities have put them at risk, and what can be done to save them.
In graphic-novel format, this book chronicles the 1906 earthquake that destroyed the city of San Francisco while providing a story of one family's escape from the disaster.
In graphic-novel format, this book examines the history of Ellis Island while providing a story surrounding one family's immigration to America.
This book discusses the era of slavery in America and the impact it had on the future of the nation.
