Grade 4

Read all about it! The history of the printing press started centuries ago. Through the years, it has been used to share news, make books more affordable, and make information more… More →

Mercury is the closest planet to the Sun! It may be small, but it is full of extremes. Temperatures range between -300 and 800 degrees Fahrenheit! As it zooms around the Sun every 88 days,… More →

If humans ever make it to Saturn, they won’t be able to land on its surface. This enormous planet has no solid ground! Beyond its seven magnificent rings, Saturn swirls with dense clouds of… More →

A dragster can finish a race by the time you finish reading this sentence. These speed demons are the fastest accelerating vehicles in the world! Readers will the get a rush learning about… More →

A single day is longer than a year on Venus! This hot, rocky planet is much like Earth, but it holds many mysteries that scientists work hard to unravel. How did it form? What is it made of?… More →

Guatemala is a nation filled with diversity! People with Maya and Spanish roots as well as other ethnicities bring a rich culture. The land houses black beaches, volcanoes, and highlands as… More →

Switzerland is a country of many faces! People from all over the world make this neutral land home. Even though it has four official languages and a diverse population, Switzerland’s culture… More →

Uranus is an ice giant that spins completely on its side! Scientists have studied it since its discovery in 1781, but Uranus remains one of the solar system’s most mysterious planets. In… More →

Ready for an off-road adventure? Whether in the desert or the woods, ATVs take their riders over rough trails. Readers will learn about the uses and parts of ATVs, and even about some… More →

Did you know that a monster truck weighs as much as an elephant? These powerful trucks wow with mind-boggling jumps and stunts. Fans of these awesome vehicles will love digging into their… More →

Stock cars race around tracks at 200 miles per hour. This book examines what makes top speeds possible, how the drivers stay safe inside the cars, and the history of these racing vehicles.… More →

In competitions filled with flipping freestylers or speedy racers, motocross cycles put on a thrilling show. Readers will get an insider’s look at the history, parts, and competitions of… More →