Grade 4

In Hot Air Balloons, early fluent readers learn about the science, engineering, and physics behind buoyant hot air balloons. Vibrant, full-color photos and carefully leveled text engage young More →

In Motorcycles, early fluent readers learn about the science, engineering, and physics behind a speeding motorcycle. Vibrant, full-color photos and carefully leveled text engage young readers More →

In Speedboats, early fluent readers learn about the science, engineering, and physics that keep these boats afloat. Vibrant, full-color photos and carefully leveled text engage young readers… More →

In Trains, early fluent readers learn about the science, engineering, and physics behind locomotives. Vibrant, full-color photos and carefully leveled text engage young readers as they learn… More →

In Challenger, early fluent readers will learn about the science behind the explosion of the Space Shuttle Challenger. Vibrant, full-color photos and carefully leveled text will engage young… More →

In Chernobyl, early fluent readers will learn about the science behind the Chernobyl nuclear power plant disaster. Vibrant, full-color photos and carefully leveled text will engage young… More →

In Deepwater Horizon, early fluent readers will learn about the science behind the biggest marine oil spill in U.S. history. Vibrant, full-color photos and carefully leveled text will engage… More →

In Hindenburg, early fluent readers will learn about the science behind the crash of this monumental airship. Vibrant, full-color photos and carefully leveled text will engage young readers… More →

In Titanic, early fluent readers will learn about the science behind the ill-fated voyage of this “unsinkable” ship. Vibrant, full-color photos and carefully leveled text will engage young… More →

In this book, early fluent readers will learn about the unique strength of ants. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn more about the… More →

In this book, early fluent readers will learn about the unique abilities of chameleons. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn more… More →

In this book, early fluent readers will learn about the unique indestructibility of cockroaches. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn… More →