¿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.

A dictionary tailored for the Latin American market is an ideal supplement to the middle school curriculum and includes up-to-date definitions, example sentences, synonyms and antonyms, and more. Original.

The reflection that is presented in this book is born of direct contact with schools that have a multicultural public, its dialogue with the faculty and pupils of these schools, and of the queries raised by its research in intercultural education.

Una fantástica serie de biografías ilustradas para conocer a los personajes más destacados de la historia de una forma didáctica y divertida. Leonardo Da Vinci fue uno de los pintores más importantes de la historia, además de un talentoso músico, y un estupendo científico e inventor. Construyó máquinas voladoras, submarinos, ¡e incluso helicópteros! Sin embargo, le costaba mucho terminar las cosas que empezaba. Por eso, hoy en día solamente lo conocemos por sus obras más famosas, pero hay mucho más... Descúbrelo todo en este libro.

Este diccionario ilustrado presenta diferentes escenas de la vida cotidiana de Caillou. Los niños descubrirán con él el universo de Caillou: su habitación, sus juguetes, etc. Los niños disfrutarán observando los detalles de la ilustración, que representa una escena familiar. Después podrán nombrar los objetos que aparecen en la página y afianzar lo que han aprendido con divertidas actividades.