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

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

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 Vladan Borojevic googles the name of his father Nedeljko, a former officer in the Yugoslav People's Army, supposedly killed in the civil war after the decay of Yugoslavia, he unexpectedly discovers a dark family secret which recollects the events of 1991. Seventeen years later, Vladan's discovery that he is the son of a fugitive war criminal sends him off on a journey around the Balkans to find his elusive father. The story of the Borojevic family strings and juxtaposes images of the Balkans past and present, but mainly deals with the tragic fates of people who managed to avoid the...

The sordid, thrilling, and comic story of two young lovers--affluent Lala and impoverished Guayi; examines the economic and social circumstances of Argentina and Paraguay to make sense of the characters' past choices and present misfortunes.

Acuciosa biografía de Jules Verne, el autor de los Viajes Extraordinarios, enriquecida con textos e información novedosa. Constituye un mágico paseo por los sinuosos y complejos acontecimientos vitales que propiciaron la creación de su obra.

La Santísima y Vera Cruz de Caravaca fue robada misteriosamente durante las fiestas de Carnaval de 1934 y hasta ahora nadie ha podido averiguar su paradero. Sus oscuros y discutidos orígenes y su extraña desaparición llenan su historia de enigmas sin resolver. Esta novela, a medias policiaca y a medias histórica, nos lo muestra con las aventuras de un caballero templario del siglo XIII y un inspector de policía del siglo XX, unidos por los misterios de la Cruz de Caravaca en los tiempos turbulentos de nuestra Guerra Civil de 1936 - 1939. La intención del autor al escribir esta...