Exploremos el ciclo de la roca (Exploring the Rock Cycle)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

Una noche, Sarah, una adolescente de carácter fantasioso, se ve obligada a quedarse en casa cuidando a Toby, su hermano pequeño. Cuando sus padres se marchan a una fiesta, harta de oír llorar al niño, Sarah recita unos versos de su libro favorito, Dentro del laberinto, y ordena a los goblins que se lleven a su hermano. Al momento, unas extrañas criaturas aparecen y se esfuman con Toby. Poco después, un hombre misterioso y atractivo surge de la nada y se presenta como Jareth, el rey de los goblins, para a continuación sugerirle a Sarah que se olvide del niño. Arrepentida de lo que ha...

When a bird flies by a window or a car zooms by on the highway, we often wonder how fast the two objects traveled. This book explains the concept of speed to readers while showing them accessible ways to measure it for themselves. Learning the amount of distance traveled, and how quickly that distance was covered, is a great way to implement a variety of STEM topics while practicing this essential mathematical skill.

Un gigantesco depredador ha destruido el embarcadero de Wala wala, y Bizcoché, Dani y Evan se sumergen en las oscuras aguas del Santuario para descubrir qué es. A bordo de Canelo 1, el sumergible que ha inventado el profesor, explorarán las profundas aguas jurásicas. Verán mosasaurios, megalodones, plesiosauros... ¡y al temibe Depredador X! ¿Podrán escapar? ¡Descúbrelo en esta trepidante aventura!

Amusing and dynamic, this collection offers children a variety of jokes and riddles and teaches them the art of telling jokes. Divertida y dinámica, esta colección ofrece a los niños una variedad de chistes y acertijos y les enseña el arte de contar chistes.