America's most celebrated astrophysicist invites young readers to explore the mysteries of the universe.

Read and find out about the sun and the moon in this colorfully illustrated nonfiction picture book.

The sun is out in the day and always has a circle shape. The moon's shape seems to change, and you can sometimes see it in the daytime and at night. What are the sun and the moon? How are they the same and how do they differ? Hop into your spaceship and find out!

With beautiful illustrations and engaging text, The Sun

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Simple text and full-color photography introduce beginning readers to Africa. Developed by literacy experts for students in kindergarten through third grade--

Every year Don Pedro and his family make papier-mćh škeletons, or calavera, for Mexico's Day of the Dead holiday, and every letter of the alphabet gets its own unique bones.

The leafy sea dragon and other masters of camouflage blend in so well with their surroundings that they become nearly invisible. Inflatable animals like the puffer fish blow up to the point of shapeshifting. Growing readers will discover how animal adaptations are much like superpowers.

"Explore Antarctica--the coldest, driest, and windiest continent on Earth--in this adventure-filled title in the Who HQ series. Antarctica, the earth's southernmost continent, was virtually untouched by humans until the nineteenth century. Many famous explorers journeyed (and often died) there in the hope of discovering a land that always seemed out of reach. This book introduces readers to this desert--yes, desert!--continent that holds about 90...

Discusses how important a great smile is to a young girl. Raina just wants to be a normal sixth grader. But one night after girl scouts she trips and falls, severely injuring her two front teeth. What follows is a long and frustrating journey with the on-again, off-again braces, surgery, embarrassing headgear, and even a retainer with fake teeth attached. And on top of all that, there's still more to deal with: a major earthquake, boy confusion,...

Hospitalized with the dreaded atom bomb disease, leukemia, a child in Hiroshima races against time to fold one thousand paper cranes to verify the legend that by doing so a sick person will become healthy.

"Imagine over three million square miles of sand dunes that are as tall as a ten-story building. That place is real--it's the Sahara Desert! Vast, yes! And home to fascinating creatures such as ostriches and fennec foxes as well as amazing plant life. Readers will also learn about the famous trade routes of the past with caravans of up to 10,000 camels, European explorers to the region (some very unlucky ones), and native populations like the Imazighen"--...