This fascinating book explains how the shape of Earth is changed by weathering and erosion - the breaking down of rocks and minerals which are then carried from one place to another by water, More →

Engineers know that there is always more than one possible solution to a problem! This interesting title uses accessible text and relatable examples to explain how engineers test and compare… More →

Different problems need different solutions, but engineers follow the same steps to solve them. Discover the path engineers take to find new solutions or improve old ones. More →

From its roots in ancient Greece to its revitalization in the Age of Enlightenment and beyond, democracy as a form of government has changed over time. Find out what threats democracy faces… More →

Whether it is by air, water, or land, there are so many ways to get around. This 10-book set will teach early readers all about different ways to get around, including airplanes, bikes,… More →

This book carefully explains what elections are and the vital role they play in American society. Whether it is a detailed description of the lengthy process involved in choosing a new… More →

Emphasis is placed on the fact no law can be implemented without going through a painstaking and deliberate process designed to protect all members of society. Examples are used to illustrate More →

How Is Soil Made introduces the organic and inorganic components of soil; discusses plants need for nutrients, nutrient cycles, and decomposition; illustrates the weathering, erosion,… More →

To learn about the concept of quantity, children first learn to count in this simple, fun book. More →

Rock collecting is a hobby that is easy to start. Even a small collection can display a lot of the geological processes that went into the making of our planet. This engaging book describes… More →