Construcción de una ciudadanía intercultural y responsable

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.

Dentro de una atmósfera inquietante, una adolescente madura en torno a los días muertos del verano que pasaba en una vieka casona de familia.

Did you know that there are 59 different kinds of eagles in the world? Early readers will learn about many of these birds of prey in this appealing, Spanish-translated nonfiction title. With vibrant photos, intriguing facts, and simple, informative text, readers will be fascinated from cover to cover!

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...