La tierra de las almas perdidas

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

Samuel Temkin es Catedrático Emérito de Rutgers University en Nueva Jersey, Estados Unidos. Reconocido internacionalmente por sus investigaciones y libros en el campo de la Acústica, el doctor Temkin se ha dedicado en los últimos años a la historia del Nuevo Reino de León, de la cual ha publicado varios artículos de investigación y dos libros, el último sobre Gaspar Castaño de Sosa.

The Mi Mini Biografia series are Spanish language biographies for the earliest readers. This book examines the life of Eleanor Roosevelt in a simple, age-appropriate way that will help children develop word recognition and reading skills. Includes a timeline and other informative backmatter.