From birth to death, the lives of medieval Christians were greatly influenced by the Church. To prove their faith, they built massive Cathedrals as great monuments to God. At the same time… More →

This gripping title traces the causes, symptoms, and treatment of plague through the height of the Black Death in Europe and into the modern day. More →

From the mysterious plagues and diseases of ancient times to global epidemics and the flu, these disasters have evoked fear in the hearts of people. This book looks at types of diseases, how… More →

Earthquakes, volcanoes, fossils, and gemstones - kids will want to put what they learn about our planet into action with exciting art activities. Fascinating activities will help make the… More →

From a stalk of corn to a pine tree, every plant is made of plant cells. What material is in these cells? How do they hold together? How do growers use their knowledge of cell growth to… More →

In this compelling title, students are encouraged to "dig in" and discover how different plant fossils unlock clues to the Earth's past. Through full-color photographs and thought-provoking… More →

Do you wonder about all of Earth's living things? Do you know why plants are so important on Earth? In this book, learn what makes plants special, including how they make their own food and… More →

In its rainforest home, the sloth can spend its whole day chewing leaves and moving so rarely that plants actually grow on its fur. From giant trees with buttress roots to ‘air plants’ that… More →

The plant kingdom contains more than 250,000 species. With green pigment called chlorophyll in some cells, these organisms have the unique ablility to make their own food. This colorful book… More →

Plants are living things that grow and change. Over time, plants have made remarkable adaptations to suit the habitats in which they live. Simple text and beautiful images highlight how… More →