La proclama de emancipacion

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

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

Follows the Thirteen the Amendment that freed the slaves, end of the war, and the death of President Abraham Lincoln.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Help readers make a difference by encouraging them to learn about the various ways the environment needs our help and the things they can do to reduce their carbon footprint. Readers will learn about the effects of pollution, fossil fuels, renewable and non-renewable resources, deforestation, and recycling through interesting images and charts and informational text. This Spanish-translated nonfiction title features a glossary of terms and a list of helpful websites that encourages children to take part in helping the environment in many different ways.

LEER UN FRAGMENTOUNA HISTORIA DE VIOLENCIA AMBIENTADA EN LA ALEJANDRÍA DE HYPATIALa protagonista ubícua de esta novela es la ciudad de Alejandría, la más inquieta y cosmopolita del orbe mediterráneo a comienzos de la era cristiana. En ella escenifica Pilar Pedraza magistralmente un tiempo convulso, inicio de la decadencia de la gran metrópoli, rubicón del auge del cristianismo que habría de acabar con siglos de tolerancia y eclecticismo cultural a partir del brutal sacrificio público de Hypatia (filósofa, astróloga y matemática en la que se inspira la autora para su personaje de...

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

La Asociación Española de Sexología Clínica ha escrito los textos de esta colección con el fin de responder a la curiosidad de los niños y enseñarles de una forma natural, adaptando cada cuestión a su edad y explicando las cosas de un modo sencillo, aunque riguroso, acompañado además de graciosas ilustraciones. Este libro explica gráficamente el proceso de fecundación y todos los estadios del embarazo y del parto, además de los primeros cuidados de un bebé.