¿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.

La maldición de Chaka, obra excepcional dentro de la producción de Henry Rider Haggard (célebre sobre todo por Las minas del rey Salomón, Allan Quatermain y Ella), trasciende la novela de aventuras para ofrecernos una narración rebosante de la historia mítica del pueblo Zulú, de épica y de elementos sobrenaturales. La historia, referida por el viejo Mopo a un misterioso viajero, nos habla de los grandes acontecimientos que tuvieron lugar durante el reinado del cruel Chaka, fundador del imperio Zulú (un mito y un dios para su pueblo, que se empeñó en matar a todos sus hijos para no...

Discover what it takes to be an Emergency Room doctor in this enlightening nonfiction title that has been translated into Spanish. Readers learn about the hard work and dedication it takes to have a career as an ER doctor and what a typical day is like in the emergency room. From medical school to residency, medical symptoms to diagnosis, children will learn all about the steps it takes to get involved in this profession. This engaging title features vivid photos, helpful charts and diagrams, informational text, a glossary of terms, and an interview with a real life ER doctor to delight,...

Tabula Gratulatoria. Introducción. I. Biografía. II. La ideas. III. Contenido y estructura de las Cartas de Relación. IV. Las Cartas de Relación y la historiografía de América. V. Manuscritos y ediciones. Noticia Bibliográfica. Bibliografía Selecta. Nota Previa. CARTAS DE RELACIÓN: Primera relación. Segunda relación. Tercera relación. Cuarta relación. Quinta relación. Variantes Textuales. Glosario. Índice de Láminas.

George Washington Carver was a skilled botanist who became famous for his work with peanuts and other plants. Readers will discover the captivating life of this incredible scientist in this engaging scientific biography translated in Spanish. Using colorful photos and graphs, children will learn why Carver was known as "The Plant Doctor" as a child and how his work with peanuts, sweet potatoes, and pecans helped change the way people used plants! The helpful glossary and index aid in better understanding of the content, while a simple, interesting experiment leaves Spanish-speaking children...