Although it existed for only a year and a half, the Pony Express remains an enduring symbol of the bold, adventurous character of the old West. With her inimitable ability to bring the past to life, the author captures the spirit of the brave riders and ponies who became a legendary chapter in American history. Full-color illustrations.

Welcome to a story about the world's most devoted dad--the Emperor Penguin. This dilly of a dad spends the entire winter outdoors in Antarctica without anything to eat, keeping the egg warm until it's ready to hatch. Full color.

In this book, featuring realistic artwork by Schindler, readers will learn about the silk spiders produce, the webs they spin, and the prey they capture in the newest addition to the series the ALA Booklist cited as one of the top-ten nonfiction series. Full color.

From A to Z, volunteer firefighter and fine artist Demarest presents a day in the life of firefighters whose job it is to answer the call to put out fires and save property and lives. Full color.

The veteran science team of Branley and Kelley lets readers see what they would experience if they could walk on the moon. The "Find Out More" page show readers how to make their own moon crater and try other moon activities. Color illustrations.

Moonlight is really sunlight!Did you know that the moon doesn't make its own light? Instead, it receives light from the sun and reflects it to us on the Earth. Read and find out about how the sun, the stars and light bulbs make light so we can see.Did you know that moonlight is really sunlight? The moon can't make its own light, so it receives light from the sun and then sends it to us here on the ...

Different forms of energy are explained in this simple, fun activity book that encourages budding scientists to conduct their own experiments. Full-color illustrations.

Berger and Meisel reveal the mysteries behind the reflexes that happen in the human body, in this humorously illustrated introduction to the nervous system. Includes experiments. Full color.

Dolphins communicate underwater for the same reason people talk on land: to let others know who they are, where they are, and maybe even how to feel. This book explores the delights of "dolphin talk" and includes activities.

What makes a pony a pony? How are they different from horses? Filled with loads of interesting facts and bright, realistic illustrations.

This illustrated book explains how earthworms eat, move and reproduce, and how they help plants to grow. Full color.

This popular picture book series is ideal for machine-crazy toddlers. Lively rhyming text makes learning more fun than ever, and each book contains a picture dictionary. Full color.

Toddlers are totally entranced by trucks, it's true! Tough Trucks delivers lumbering tractor-trailers, dump trucks, tankers, and monster trucks galore--the way kids love them. Rumble down the road with a team of wacky animal truckers in this truck-tastic picture book.

Chirp! Chirp! Chirp!That's the sound crickets make. You've probably heard them chirp on a summer evening. But did you know that they make their chirping sounds by rubbing their wings together, and that only male crickets can chirp?Inside this book you'll learn about crickets, and even how to tell the temperature by counting a cricket's chirps.Melvin Berger and Megan Lloyd have created a wonderful ...

These classic titles are now updated with the most recent research with the cooperation and curators from the Smithsonian's Air & Space and Natural History museums. These new editions feature full-color photos, glossaries, reference materials, and indices.

There are forces at work whenever you throw a ball, run up the stairs, or push your big brotheroff the couch. Want to learn more about the forces around you? Read and find out!

What is sand? How is it formed? Where does sand come from? Prager, the sandpiper sleuth, answers these questions in a lively, collage-style look at a familiar substance that's never been so fascinating. Full color.

This unique approach to the story of the American Revolution weaves the tale around two quite similar leaders--George Washington and King George III--with two very different viewpoints. Includes bibliography, source notes, and an index. Full color.