El ciclo del nitrógeno (The Nitrogen Cycle)

A New York Times best-seller and winner of the ABBY Award features lavish illustrations of Native American settings and shares Chief Seattle's environmental message for "helping preserve what is being lost."

Many animals live in water, but only some can be defined as fish. Twenty-eight thousand species of fish exist, each with different characteristics. Readers from grades one through four will learn that fish have a distinct impact on their ecosystem and will see how fish survive when well-adapted to an uncompromised environment. Beautiful photographs demonstrate the great diversity of fish and accompany intellectually stimulating explanations of their varying roles and traits. From page to page, what a fish is unfolds in vocabulary call-outs, insightful questions, and relatable...

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

Un libro para conocer la vida cotidiana de otros niños en diferentes partes del mundo y aprender a respetar otras culturas. Lanhua tiene doce años y vive en Shanghai. A través de su diario nos muestra cómo es su casa, su familia, su colegio, su barrio, sus costumbres... En definitiva, nos abre una puerta a su vida para conocer, de primera mano, cómo es su país. Además del diario de Lanhua, este libro incluye muchos datos que completan la información y dan respuesta a muchas de las preguntas que los niños se hacen sobre China. El libro tiene muchas solapas para levantar y un...