Mezclas y soluciones (Mixtures and Solutions)

Describes, in text and illustrations, the technological challenges involved in the design and construction of skyscrapers, oil rigs, nuclear reactors, and other complicated structures.

«En un mundo violento, erizado de muros y excavado con fosos, el universo de Francisco de Asís carecía de torreones y murallas. Pobre de bienes y de poder, estaba en paz con todos, vivía como hermano de los seres, y a todos ellos dirigía una mirada llena de respeto... Sus ojos habían llegado a ser maravillosamente humanos... Su horizonte no era la cristiandad de su tiempo, con sus fronteras que defender, sino Jesucristo, a quien amar, y el ser humano a quien salvar». Eso fue lo que llevó a Francisco más allá de las fronteras de la cristiandad. En plena cruzada, partió hacia Oriente ...

Are you ready to embark on a wild counting caper? Imagine... eleven oysters at the opera, eighteen dalmatians dressed in diamonds, and twelve ladybugs shopping in the market! Meet an unforgettable host of zany creatures in this delightful bilingual counting book. Readers will encounter concepts such as color, time, size, shapes, and more as they answer questions relating to colorful cut-paper illustrations. Nancy María Grande Tabor's concise and direct questions encourage thinking while her charming characters entertain. In both Spanish and English, this unique counting book challenges...

If it were possible to shrink down and take a tour of a human body, would you want to go? Readers will get that chance when they explore the body of a guy named Marty, who will let them check out the body systems that keep his heart beating and his body moving every day. With the help of a tiny ship that goes through his ears and all the way through his digestive system, readers will learn exactly what they are made of with this great book.