Grade 6

American presidents have come from all walks of life. Some have had a lot of experience campaigning for office, while others have had almost none. In fact, the nation's first president—George Read More →

Growing up in a Quaker family in the South in 1830, Levi Coffin did not support slavery, but he was exposed to its atrocities. Convinced that every person deserved to be free, Levi began… Read More →

Prince Rogers Nelson wrote his first song at age seven, and soon taught himself to play the piano, drums, and guitar. In the early 1980s, Prince wondered how to make his music—a mix of pop,… Read More →

On April 29, 2011, the whole world watched as Prince William of Wales and Kate Middleton exchanged marriage vows. This royal wedding was one of the most anticipated events in England in… Read More →

Have you ever wondered what it would be like to go into outer space? Soon you might be able to find out! For years, only trained astronauts were allowed to travel through space, but now lots… Read More →

Like everyone, kids sometimes put things off. It may be when they're tired, a task is unpleasant, or they simply don't know how to get started. Whatever the reason, procrastinating can create Read More →

Imagine having a job that has been around for thousands of years. People called cryptologists have been making—and breaking—codes almost as long as humans have written things down. Read about Read More →

Professor Thomas Cat is an expert brain scientist! He's spent years learning all about how to control—er, understand—the human brain. He has a very thorough presentation put together to show Read More →

What makes people commit crimes, and how do you unlock a criminal mind? In this fascinating exploration of crime science, readers will discover how crime investigators use science to profile… Read More →

Every living thing on our planet needs air to survive. Most of the time, we hardly even think about Earth’s air. But did you know that many of the things we use every day—from cars to… Read More →

Nearly all living things depend on Earth’s land and its resources to survive. But did you know that people do many things that hurt the land? The damage sometimes destroys forests, which are… Read More →

From brilliantly colored birds and wild elephants to towering trees and exotic flowers, rain forests are home to more than half of Earth’s plants and animals. People living in rain forests… Read More →

From roaring oceans to trickling streams, water covers seventy percent of our planet! But did you know that less than one percent of Earth’s water is usable by humans? Most water on Earth is… Read More →

In ancient Greece, a princess rises to a challenge: Psyche lives in the comfort of her parents’ wealthy kingdom. But when her beauty draws the jealous anger of the powerful goddess Aphrodite, Read More →

Anna and Caleb have been friends since kindergarten, but their beliefs have pushed them apart. Anna is president of the science club and focused on getting into the best college. Caleb is… Read More →

This exciting new book introduces kids to the science of psychology, with chapters on the brain, personality, intelligence, emotions, social relationships, and more. Accompanied by colorful… Read More →

An A for effort. Cracking the books. Putting your nose to the grindstone. Have you ever heard these crazy expressions? People use them even when no one's really grading you, breaking books in Read More →

This updated edition of the bestselling classic is packed with fun exercises for kids with attention difficulties. This resource for young people, their parents, and professionals is now… Read More →

A freak sandstorm seals you inside a pyramid in the desert! The only way out is by solving puzzles that lead you past a snake pit, booby traps, and a treasure cave. Devised by an expert on… Read More →

People have always needed doctors. But the doctors of the past might not look like the doctors you are used to seeing! Sometimes their healing methods were weird, disgusting, or even… Read More →

When Queen Elizabeth II was born, no one expected her to become queen. But after her grandfather died, her uncle unexpectedly gave up the throne, and her father became king. She became next… Read More →

People who knew Queen Latifah as a kid in Newark, New Jersey, would never have guessed at the fame in her future. But Latifah always dreamed big. Her dreams—and hard work—paid off. While… Read More →