La rana que no sabía que estaba hervida...

★“Fascinating...An appealing resource sure to spark an interest in biomimicry, from casual readers to budding scientists. Recommended for all libraries.”—School Library Journal, starred review Did you know that lamps can be powered by glowing bacteria instead of electricity? That gloves designed like gecko feet let people climb straight up glass walls? Or that kids are finding ways to make compostable plastic out of banana peels? Biomimicry, the scientific term for when we learn from and copy nature, is a revolutionary way to look to nature for answers to environmental problems such...

Action! It's time to enter the world of movie magic! readers are taken behind the scenes to find out what is needed to make a film. From the director to the actor, the director of photography to the costume designer, children will be fascinated to learn about the various aspects that go into motion pictures. With its vivid images, informational text, and impressive facts, this Spanish-translated nonfiction title will have readers engaged through the entire book as they discover amazing facts about their favorite genre--whether it be comedy, drama, action, or horror! This 6-Pack includes six...

Presents a collection of poetry and lullabies by a number of Colombian authors and poets including Jose Silva and Eduardo Castillo.

Las computadoras y el Internet cambiaron para siempre la forma en que comunicamos mensajes y otro tipo de información. También crearon nuevos desafíos para poder mantener esas comunicaciones privadas. Ahí es donde entra la criptología digital, el estudio de la comunicación digital secreta. Aprende sobre cómo trabajan los criptólogos profesionales para burlar a los piratas informáticos y ciberterroristas que intentan acceder a información privada. ¡Luego prueba tus habilidades con una actividad práctica de criptología digital! Computers and the internet forever changed how we...