Experimentos sencillos con animales y plantas

For thousands of years, militaries around the world were limited to male soldiers. However, throughout history, brave women have stepped out of the background and onto the battlefield. This biographical text covers the important women who’ve broken ground in the military. Famous historical figures such as Joan of Arc, Clara Barton, and Florence Nightingale are covered in depth, while the stories of modern-day heroes are presented to show how women are still affecting change on the front lines. A comprehensive timeline, fact boxes, and historical and modern images complete this...

Tells the story, through graphic novel format, of Harriet Tubman and her life as a leader on the Underground Railroad.

Identify three-dimensional shapes all around the world in this Spanish-translated e-Book! Figuras en nuestro mundo (Shapes in Our World) gives readers practice identifying familiar shapes like cones, cylinders, pentagons, polygons, and prisms, while familiarizing them with STEM themes and more advanced geometry concepts. Children will learn more about vertices, symmetry, and bases. With each shape, this book gives readers information about an example of the shape, be it a building, a honeycomb, or a tree trunk! With an accessible glossary, clear mathematical diagrams, practical examples, and...

B+En algunas personas, bajo las apariencias de una ramplona trivialidad, surge a veces la revelacion de las estructuras profundas de lo real.B; B+Las Tres graciasB; , B+El puenteB; y B+El burdel de las gitanasB; son tres relatos iniciaticos que, como otras obras narrativas de Mircea Eliade, estan estrechamente ligados a sus estudios sobre religion y mitos. Sus personajes, entre la memoria y el sueno, transitan las melancolicas calles de Bucarest o recorren los paisajes rumanos en busca de una respuesta a la existencia y sus misterios.