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

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.

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.

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.

Students will learn that small actions can make a big difference! This Spanish nonfiction book explains why civic duties are important and how to fulfill them. The book includes a glossary and a short fiction piece related to the topic. With examples of heroes like Jackie Robinson and Sandra Day O’Connor, this book and the accompanying project will help students see what it means to be leaders. This 32-page full-color Spanish book describes the importance of civic duties while giving examples of people who can serve as role models for students. It also explores important topics like...

El Cazador de incendios andaba todo el día de un lado a otro cazando incendios con sus bolsas y cajas. Pero un día, un incendio se le resistió. Cuando ya sólo pensaba en su fracaso, precisamente ese día, encontró el amor.

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.

¿Existieron de verdad, en un tiempo lejano, los dragones voladores, los grifos dorados, los unicornios mágicos, los gigantes y las sirenas? ¿O acaso estas criaturas misteriosas son producto de la imaginación de nuestros antepasados? En las páginas de este libro nos convertiremos en auténticos paleontólogos y rastrearemos los valiosos indicios que se esconden en los fósiles de los animales prehistóricos más extraordinarios. Un recorrido apasionante para conocer más sobre los dinosaurios, paquidermos, moluscos y reptiles acuáticos que poblaron nuestro planeta hace millones de años, ...