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.

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.

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.

¿Qué cosas suceden en esta biblioteca maravillosa? ¡Un zorro se olvida de cazar ratones! ¡Un ratón aprende a hacer trucos de magia! ¡Una gallina le lee cuentos a un zorro! Un libro conmovedor para darnos nuevas ideas. . . What goes on in this marvelous library? A fox forgets to hunt rats! A rat learns to do magic tricks! A hen reads stories to a fox! This is a moving book that offers plenty of new ideas.

Mis pies tienen raíz tiene una estructura única: un índice que revela los lazos que compartieron personajes que pueden haber estado muy lejos unas de otras en el tiempo y en el espacio. Si una era pintora y ensayista, otra era ensayista e historiadora, y otra más historiadora y cocinera... Este entrecruzamiento hace énfasis en el papel de las mujeres como guías, mentoras, inspiradoras y maestras de las generaciones siguientes, y busca contrarrestar los discursos que las muestran como historias anómalas, aisladas unas de otras. Las imágenes en acrílico que ilustran cada historia...

Explores in story format, what drove Columbus to sail west in search of a new passage to India. Includes study questions.

This book uses intriguing primary sources to introduce students to the life of George Washington. The detailed, authentic images and simple, repetitive phrases will engage students in reading and build their social studies content knowledge. For use in the classroom or at home, this Spanish book includes a simple glossary and index to introduce informational text features to young readers and provide additional reading support.