¿Por qué hibernan los animales? (Why Animals Hibernate)

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.

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.

Se ofrecen ideas para transformar materiales y objetos en bonitos decorados, y se proponen técnicas y recursos para modificar el rostro del actor. Disponible en catalán, para comprarlo haz clic aquí.

Six titles in the illuminating Who Was . . . ? series are now available in Spanish-language editions. Each title features black-and-white illustrations.

Usa las matemáticas: Agrúpalo (Use Math: Group It) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on grouping, children will look at similarities to figure out which items should be grouped together. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to make connections on what is the same. Aligned with state standards, Usa las matemáticas:...

Para Fray Luis de León «El Cantar de los Cantares» tiene un valor de categoría y ejerció sobre su inteligencia una atracción singular. Todavía no había cumplido los treinta y tres años cuando lo tradujo al castellano de su original hebreo y le añadió un comentario literal. En 1580 sale a la luz su «explanatio» con el comentario literal y místico. El «Cantar» proporcionó a Fray Luis los mayores disgustos y sinsabores con la Inquisición, pero fue el libro sagrado que más deleites y consuelos le produjo y el que más hondamente modeló su espíritu. Este volumen presenta la...