La tumba tenebrosa

Five and counting! So far, astronomers have discovered five dwarf planets in our solar system. Pluto, which was once thought of as the ninth planet, is today classified as a dwarf planet. This book looks at the current dwarf planets, characteristics, size, and orbital patterns, as well as the three rules scientists follow to characterize these tiny, round space objects. Every day new discoveries are being made. Who knows how many dwarf planets we will find in the future! This book will allow students to understand that patterns in the natural world can be observed, used to describe phenomena, ...

Describes the U.S. Navy, including their vehicles such as jets, aircraft carriers, and submarines, their weapons, and some of the different jobs that members perform in the Navy. Written in English and Spanish.

"El polígrafo abate Vicente Requeno y Vives, jesuita aragonés expulso y apasionado neoclásico (Calatorao, 1743-Tívoli, 1811), se dedicó intensamente en Italia a restaurar todo tipo de artes grecolatinas, consiguiendo un notable éxito en la técnica pictórica del encausto. Por el contrario, su obra filosófica ha quedado inédita en su totalidad hasta el 2008, en que Prensas Universitarias de Zaragoza editó sus Escritos filosóficos. Ahora, y con motivo del bicentenario de su muerte, presentamos un libro colectivo en el que una veintena de historiadores profundizan en la vida y la...

It was known as the age of the dinosaurs, but other fascinating creatures roamed the Earth at the same time. Learn about lesser-known animals from the prehistoric era that are no less fascinating! Students will be engaged in reading about ancient animals like Gigantopithecus, Titanoboa, Megalodon, and more as they develop their skills at reading and writing numbers. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make...