El misterio del eunuco

Un joven llamado Jorge Ozadía de repente se ve envuelto en una misteriosa y terrible situación. Así comienza esta novela que plantea un tema original y cuya lectura no podrá abandonarse hasta conocer el desenlace. El continuo suspense se combina con una enigmática parábola sobre el azar, la casualidad... o la providencia.

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.

Giraffes have long necks. Hummingbirds can fly backward. These are examples of adaptation. This nonfiction Spanish book teaches students about adaptation and introduces them to important scientific concepts and vocabulary terms. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.

Un libro claro, riguroso y estructurado, adaptado a los contenidos curriculares de Ciencias de la Naturaleza de 2o de ESO acompañado de un elevado número de actividades teóricas, prácticas, competenciales e interactivas. Destaca por tener un enfoque hacia las nuevas tecnologías, con vínculos a animaciones y a actividades interactivas. Y por tener un planteamiento encaminado al trabajo de las competencias básicas.

Discusses the role of the gases surrounding Earth and the relationship of the atmosphere to weather. Presented in English and Spanish.