Jane Addams

A simple biography of the naturalist who founded the Sierra Club and was influential in establishing the national park system.

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Antes era válido acusar a quienes historiaban el pasado de consignar únicamente las «gestas de los reyes». Hoy día ya no lo es, pues cada vez se investiga más sobre lo que ellos callaron, expurgaron o simplemente ignoraron. «¿Quién construyó Tebas de las siete puertas?», pregunta el lector obrero de Brecht. Las fuentes nada nos dicen de aquellos albañiles anónimos, pero la pregunta conserva toda su carga (Carlo Ginzburg).

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

Presents illustrated scenes with English flaps in the form of dialog bubbles that fold down to reveal the phrases and words in Spanish. On board pages.

Un libro de juegos tranquilos sobre la noche que nos ayudará a adentrarnos en el mundo de los sueños. Para antes de ir a dormir, una propuesta lúdica sobre la noche, las constelaciones, la luna, las estrellas y las criaturas de la noche que incluye adhesivos, tintas fosforescentes y un origami para recortar.