Sistemas solares: Planetas, estrellas y órbitas

In Bosques, carefully leveled text and vibrant, full-color photographs take beginning readers on a tour of a temperate forest. Readers learn about this important ecosystem and the variety of living things adapted to live there.

In Earning Money, early readers learn about the concept of earning money and ways to do it. Vibrant, full-color photos and carefully leveled text will engage early readers as they discover basic economic principles.

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...

What has hairy paws, a fluffy tail, and huge and fuzzy ears? If you guessed a fennec fox, you're right! This book introduces early readers to a mystery animal by describing its features, one by one, using short simple sentences and eye-popping full-color photos. At the end of the book, the secret animal is revealed across a colorful, two-page spread. Young children will love showing off their beginning reading skills as they learn about this dazzling collection of wild and wonderful zoo animals--one clue at a time! Fast facts and habitat maps at the end of the book provide children with key...

La fiesta de las estaciones recoge los mejores cuentos, poemas, tradiciones, adivinanzas y juegos para descubrir los cambios que nos depara cada estaci�n del a�o. A veces da la impresi�n de que el a�o se repite: estaci�n tras estaci�n salen del mismo escondite los meses y las semanas... Pero los ni�os lo saben: hoy no es igual que ma�ana, las estaciones son fiestas. Las estaciones de a�o son algo que suscita un gran inter�s por parte de los ni�os. Cada vez que un peque�o curioso pregunta por qu� existen diferentes estaciones podemos explic�rselo de muchas maneras....

An illustrated field trip visits a newspaper to explain about reporting and editing the news, printing the newspaper, circulation, and related topics, in a study that spotlights some important vocabulary and concepts.