Charlie is just a regular kid who happens to live in the world's largest nature reserve, Charlie's Park. Together with his mom, dad, little brother Archie, and Uncle Monty, they live, work,… More →
Grade 3 - 5
The United States government is strong. But no single person has all that power. What do you know about checks and balances? Discover the roles of the three branches of government, how their… More →
In Cheetah or Leopard?, beginning readers will learn to spot the differences between these big cats. Carefully leveled text relays what the animals look like and how they behave. Each page… More →
Many big cats have patterned coats, but what is the difference between a cheetahХs spots and a leopardХs rosettes? In this low-level text, bright photos and side-by-side comparisons show this More →
A flickering flame and the smoke curling from a burnt out candle have a lot in common. They are both signs of a chemical reaction. Learn all about the reactions from the smallest atomic… More →
The world around us is full of elements. Many of them are necessary for life, and many more can be put to use. Which ones and how? The answers are found in the science of chemistry. This… More →
Fall 2025
Chemistry in the Lab & Nature
From the composition of rocks and minerals to the constant changes happening in the human body, chemistry is all around us. Every day, scientists study nature and explore chemicals within… More →
Fall 2025
Chemistry in Use
Chemistry can make our world better. Farmers use special chemicals to help grow bigger and more nutritious crops. Chemists create new medicines that treat illnesses and pain. From plastics to More →
In this book, early fluent readers will marvel at Chichén Itzá while learning about its history, location, uses, and architecture. Vibrant, full-color photos and carefully leveled text will… More →