Grade 4

An interactive introduction to musical instruments with 50 original compositions to listen to—from the kazoo to the bassoon. What does a double bass or a sitar sound like? What's the… Read More →

Where in the world can you see the world's largest rodents, galloping around in herds? Where can you find the world's largest river or the highest waterfall? The continent of South America! Read More →

Pack your bags! We’re headed to South Korea. On this whirlwind tour, you’ll learn all about the country’s landscape, culture, people, and more. We’ll explore coastal islands and mountain… Read More →

Imagine watching a space shuttle on the launchpad, ready to blast off into orbit. Astronauts have embarked on some of the most amazing adventures and made incredible discoveries. Yet sadly… Read More →

Have you ever watched video of astronauts walking on the moon? Margaret Hamilton programmed software that helped get them there. As a girl, Hamilton loved math and science. She grew up during Read More →

Explore outer space through interactive augmented reality experiences! Space suits protect astronauts during launches and landings and allow people to go on space walks. But astronauts need a Read More →

The fast-track facts and information in this book are delivered in energetic bite-sized morsels, while exciting mini-missions challenge readers to test facts or find out more. With cool… Read More →

Explore outer space through interactive augmented reality experiences! Space is a dangerous place for humans. That's where robots and rovers come in! These cutting-edge space machines can… Read More →

Don't panic, but you're alone on a space ship roaring away from Earth! Solve a series of puzzles to pilot the ship to the Moon, then refuel for the return to Earth. Devised by an expert on… Read More →

Since the beginning of the space race, robots have helped astronauts learn about space. Robots repair spacecraft, help with experiments, explore planets and moons, and more. Catch an inside… Read More →

Do you love shiny UFOs or high-tech Mars rovers? Whatever your favorite space creation, you’ll soon be drawing out-of-this-world designs like a pro with the help of this fun book. Just follow Read More →

Explore outer space through interactive augmented reality experiences! Humans first placed a space station in orbit around Earth in 1971. Construction of the International Space Station began Read More →

Explore outer space through interactive augmented reality experiences! Landers, rockets, and capsules carry people and cargo to and from space. Modern space vehicles can go farther and… Read More →

Are you a fan of computers? When Elon Musk was growing up, he taught himself computer programming so he could design his own games. As an adult, he set out to design much more complex tech… Read More →

Pack your bags! We’re headed to Spain. On this whirlwind tour, you’ll learn all about the country’s landscape, culture, people, and more. We’ll explore Spain’s beautiful seacoasts, rugged… Read More →

The world we live in holds jungles thick with trees, deserts covered with sand, and cold snow and ice at the North and South Poles. What plants and animals live in these special places? Read More →

The world's most dangerous missons are carried out by elite fighting crews—the special forces. Make sure they are on your radar! Inside you'll find these features: Read All about It… Read More →

Did you know space stations have orbited Earth for decades? Or that people live in space on these giant labs? Learn more about space stations through incredible facts, photos taken aboard… Read More →