Henry Carter Hull

How do astronauts prepare for their missions in space? What recent discoveries and innovations have changed how astronauts train? With a focus on STEM, fascinating sidebars, and up-to-date facts, this book delves deep into the world of astronaut training.

It's something many people use every day, but do you know who invented the television? David Sarnoff, the powerful radio executive, is often thought of as the Father of Television. But the story might not be so straightforward. What if a simple farm boy, Philo T. Farnsworth, deserves the credit? Follow along in the race as an underdog inventor takes on a high-profile executive in a battle that would last more than a decade and cost millions of dollars....

Do you know who invented the airplane? Most Americans believe it was Wilbur and Orville Wright. But what if that's not true? What if a German immigrant named Gustave Whitehead beat the Wrights to the punch, flying a plane he designed several years before Wilbur and Orville took their famous flight? You'll hang on every word as the Wright brothers and Whitehead face off to become the first to fly. Read on for a story full of disputes, determination,...

Stephen Hawking is among one of the most inspiring persons of our time. His work in the general theory of relativity and quantum mechanics has been significant. This title includes primary sources, sidebars, prompts and activities, charts and graphs, and much more. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing Company.

A harpy eagle snatches a sloth from a tree. Time to eat! These birds have strong, sharp talons that were made for carrying prey. This is just one adaptation explained in this fascinating series about harpy eagles' lives in the rain forest.

Forests are vital to life on Earth! In this title for young readers, leveled text and crisp photos introduce the different types of forests and their parts, the plants and animals that live in forests, and how humans interact with and impact forests. Special features profile famous forests, highlight forest animals, and summarize the human impact on these landforms. This title will help readers climb high with their reading skills!

Will astronauts one day travel all the way to Mars? Get informed about Mars research and plans for Mars exploration, and discover key aspects of the science and technology involved in solving the mysteries of the red planet.

Did you know some of Saturn's sixty-plus moons are covered with icy methane oceans? Or that a huge storm on Jupiter has raged for more than three hundred years? Discover what scientists are currently researching about the planets in our solar system. Incredible photos and STEM Focus sidebars deliver additional insights.

In this book, early fluent readers will learn about the powerful strength of rat teeth. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn more about the special biological adaptions that make rats one of nature's superheroes. An infographic aids understanding, and an activity offers readers an opportunity to extend discovery. Children can learn more about rats using our safe search engine that provides...

In this book, readers will learn about the incredible transformation the tiniest joey makes into a full-grown kangaroo. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the incredible stages of the life cycle of a kangaroo. An infographic illustrates the key stages of the life cycle of a kangaroo, and an activity offers kids an opportunity to extend discovery. Children can learn more about the life...