Grade 4 - 6

Your muscles help you move and run. Your lungs help you breathe. And your nervous system… More →

• Reading Level Grade 3
• Copyright 2015
• Dimensions 8 x 9.5

The modern world relies on powerful energy sources to light up cities, heat buildings, fuel More →

• Reading Level Grade 3
• Copyright 2023
• Dimensions 8 x 9.5

Nature is full of weird and wonderful phenomena. People around the world encounter… More →

• Reading Level Grade 3
• Copyright 2025
• Dimensions 8 x 9.5

Cultures around the world have their own superstitions surrounding good and bad luck, which More →

• Reading Level Grade 3
• Copyright 2023
• Dimensions 8 x 9.5

Everyday life can be hard sometimes. What do you do if your family is moving? How do you… More →

• Reading Level Grade 3
• Copyright 2015
• Dimensions 8 x 9.5

The Spark of Invention series provides readers with an inside look at some of the items we… More →

• Reading Level Grade 4
• Copyright 2016
• Dimensions 6.5 x 9

The United States Presidents series chronicles the lives of our nation's leaders, including More →

• Reading Level Grade 4
• Copyright 2025
• Dimensions 7.5 x 9.5

The World of Insects series reveals the intriguing physical characteristics and behavior of More →

• Reading Level Grade 4
• Copyright 2008
• Dimensions 8 x 9.5

The World of Mammals reveals the fascinating physical and behavioral characteristics of a… More →

• Reading Level Grade 4
• Copyright 2008
• Dimensions 8 x 9.5

Many financial topics can be tricky to understand, but a firm grasp of the basics is… More →

• Reading Level Grade 3
• Copyright 2025
• Dimensions 8 x 9.5

Kids love scaly, slithery reptiles! Using up-close, colorful photographs and engaging text, More →

• Reading Level Grade 4
• Copyright 2006
• Dimensions 8 x 9.5

Have you ever wondered what inspired some of the world's greatest artists? Each book in the More →

• Reading Level Grade 3
• Copyright 2015
• Dimensions 8 x 9.5