Do you wonder about the world around us? Matter is everywhere. In this book, learn the measurable properties and observable properties that scientists use to understand matter. Downloadable… More →

Earth's surface is constantly being changed by heat, water, ice, salt, plants, and animals. Sometimes the changes are destructive to human activities such as farming and the building of… More →

These important books look at our interaction with the planet and the global impact of our actions on the environment today and in the future. Key environmental issues, such as climate… More →

Science uses evidence in explaining the natural world. Using relatable, real-world examples, this informative book shows readers how to construct an argument with evidence to support a claim. More →

This book tells the story of Pteranodon. During the late Cretaceous period, between 89 and 80 million years ago, one of the largest flying reptiles to exist flew in the skies. Its large… More →

In this simple explanation of matter, children explore their world as they touch, taste, and change objects that surround them. More →

Welcome to Puerto Rico! Let Angel show you around where he lives. Learn about Puerto Rico's flag, animal, and flower. Find out his favorite activities too! Downloadable Teacher Notes available. More →

The island of Puerto Rico or "rich port" has long been known as a center of trade and commerce in the Caribbean. It is also a small island with great physical and social diversity. Puerto… More →

From being a stopping point for pirates and privateers, to a Spanish colony and later an American colony, the island of Puerto Rico has been a strategic piece of real estate for hundreds of… More →

Read to learn more about the Pug. Take a quiz to see if you are ready to adopt a bully breed dog like this one. A fact page busts some myths about bully breeds. Also includes a page for… More →