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

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 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.

La mejor forma de introducir a los lectores jóvenes a la fascinante vida del genio del Renacimiento, Leonardo Da Vinci famoso en su tiempo como pintor, inventor, y filósofo, era también un músico, escultor, e ingeniero para los duques, los papas, y los reyes. Este espléndido libro no solo despertará el interés de los amantes de la ciencia, la historia y la enseñanza con su elocuente tributo a una mente dotada de una energía incontenible, sino que despertará también el potencial que yace en la imaginación de todo el que posee una mente inquieta. Roberto Byrd celebra este genio...

Yellow Mellow, una de las youtubers más célebres de la red, se asoma a las páginas de este libro con una batería de recomendaciones imprescindibles para sobrevivir en estos tiempos. Un conjunto de reflexiones personales sobre algunos de los grandes temas universales, que te ayudarán en tu día a día a sobrellevar esas situaciones cotidianas de las que no siempre salimos airosos. ¿Cómo comportarte cuando ves a alguien a quien no quieres saludar?¿Qué ocurre después de ver una peli de miedo?¿Cuáles son las claves para superar con dignidad una primera cita?¿Cómo afrontar esta...

"Simple text and photographs present what happens to the weather, animals, and plants in spring--in both English and Spanish"--T.p. verso.

Learn about the many things humans can do to get warm when they are too cold. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in STEAM fields. Perfect for English language learners, this Spanish book builds 1st grade students’ early literacy skills.