Exploremos las rocas sedimentarias (Exploring Sedimentary Rocks)

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.

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating 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.

Children explore the concepts of big and small in the world around them, from big round pancakes to tiny little seashells.

Go-Karts are a fun and thrilling way to hit the road! This exciting, Spanish-translated nonfiction title invites readers to explore different parts needed to build a go-kart, velocity, speed, and how to stay safe in this fun motorsport. Using detailed images, charts and diagrams, informational text, and interesting facts in conjunction with mathematical skills and upper-level features such as a glossary of terms, an index, and a chapter format, readers are sure to be engaged and excited from cover to cover!

Las miles de aventuras de Leo San Juan. ¡Basado en la película La leyenda del Charro Negro! Leo y Nando San Juan están felices de haber vencido al Chupacabras. Tras despedirse de los insurgentes, y una vez más en el camino hacia Puebla, una nueva misión les impide llegar con su abuela: el Charro Negro se ha llevado el alma de una niña y, para recuperarla, Leo debe cruzar al inframundo y completar una serie de pruebas. Aun con la ayuda de todos sus amigos, ésta será la misión más difícil que el chico haya tenido que resolver hasta ahora; más allá de enfrentar a las criaturas...

Aisha es una niña de 7 años que vive en un pueblito de Malasia en cuya naturaleza vive maravillosas aventuras. Encuentra muchos nuevos amigos, como el pequeño cangrejo Ketam y la lagartija Lissi. Los 13 cuentos de este libro son apropiados para ser leídos en voz alta o para que los lean niños y adultos de todas las edades. La principal intención de la autora con estas emocionantes aventuras es inspirar a los lectores jóvenes y no tan jóvenes a respetar a los animales y a cuidar y a acercarse más a la naturaleza. Sylvia Angelika Oelwein, nacida en 1949 y madre de très hijos, ha...