Grade 4

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In Where Do Asteroids Come From?, early fluent readers will learn what asteroids are, how they form, and what happens when they get too close to Earth. Beautiful, crisp, full-color… More →

In Where Do Black Holes Go?, early fluent readers will learn what black holes are and theories about what's inside them. Beautiful, crisp, full-color photographs complement the text and aid… More →

Whitney is always whining, so how will Murph ever plan a birthday party for her that she likes? Will Whitney get the party she asks for, or is she in for a surprise? The phonemes /wh/ph/ are… More →

Nearly half a million types of plants grow on Earth. Some have flowers that smell like rotting flesh, while others have grown to some crazy large and small sizes. With so many plants on the… More →

How old is the Colosseum in Rome? How long is the Great Wall of China? Readers will find these answers and more as they learn about the location, history, architecture, and special uses of… More →

What makes gelatin so jiggly? Learn about the chemical reactions behind the process and make delicious food yourself! Vibrant, full-color photos and carefully leveled text will engage young… More →

Cough! Burp! Sniff! Our bodies make many sounds. But what do all these sounds mean? Explore the wild, wacky, and (sometimes) downright gross things our bodies do. From burps to coughs, scabs… More →

What causes fruits and vegetables to brown? Learn about the chemical reactions behind the process and make delicious food yourself! Vibrant, full-color photos and carefully leveled text will… More →

As flames rushed through the wooded hills near San Diego, California, people were forced to evacuate with what little they could take in a hurry. When the wildfire drew near, Nancy began… More →