Los fósiles y las rocas

Three Quarters Of Our Earth Is Blanketed By Water. How This Water Is Used, From Bathing To Irrigating Crops Is Addressed. That Water Travels In A Never-Ending Pattern Called The Water Cycle. Tips On How To Conserve Our Most Important Natural Resource Are Included.

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Early readers learn about wings, wing anatomy, and animal flight in this Spanish-translated nonfiction title that features informational text, vivid photos, and a glossary to support instruction.

Cesar the piglet and his siblings enter a contest and hope to win a very special prize. Contains facts about pigs.

"En este libro, Marco Politi, periodista especializado en temas eclesiásticos, va más allá de los gestos fuera de protocolo y las frases polémicas recogidas por la prensa para mostrarnos la verdadera transformación que el papa Francisco, uno de los líderes más influyentes del planeta, busca llevar adelante en la Iglesia católica. Frente a las repetidas crisis de un papado que se concibe todavía como un poder absoluto, el pontífice se ha propuesto una empresa gigantesca: reformar las estructuras del catolicismo romano, el estilo de vida de sus instituciones y la aproximación de la...