Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

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.

Engineers have built some incredible things. But with every new feat, there is failure. Readers will learn about engineering feats like the Titanic, the Hindenburg, the Hoover Dam, and more in this engaging nonfiction title that has been translated into Spanish. This title features brilliant images, charts, and intriguing facts in conjunction with informational text and mathematic skills to keep readers active and engaged.

Un elefante llega a una isla de monos. Éstos se alarman, pues, por desconocido, lo juzgan de peligroso, El elefante intenta establecer amables relaciones, pero el miedo hace que los monos le reciban con muy malos modos. Finalmente, un accidente convierte en héroe a nuestro protagonista y los monos reconocen su error. Sólo entonces le preguntan quién es. Y es que el desconocimiento lleva a juzgar mal a los demás, sobre todo si sólo se tienen en cuenta las apariencias. El argumento fundamental del libro está tratado con mucho humor para suavizar con acierto la dureza de un tema como es...

Filosofar es, ante todo, saber cuestionar, construir un razonamiento y pensar por nosotros mismos... Mediante un acercamiento original, Aprendiendo a filosofar le inicia en este camino a través de los grandes temas de la filosofía. En este libro podrá reflexionar sobre El arte y lo bello.

A collection of simple prayers arranged in such categories as "Mi hora de comer," Mis sentimientos," and "Mis días especiales.