Hot and Cold / Caliente y frío

★“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...

La comprensión, aprendizaje y aplicación de las Ciencias Experimentales, especialmente las destinadas al estudio de la Física y la Química, requieren una dedicación muy personal a la resolución de cuestiones y ejercicios que motiven el interés hacia estas materias. Este libro presta una ayuda complementaria a las explicaciones del libro de texto y de la clase. Ofrece, para cada Unidad, un resumen de los conceptos, unidades y fórmulas más importantes, así como un buen número de cuestiones, ejercicios y problemas explicados y resueltos, todo ello con el fin de afianzar y ampliar los...

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the creation of the Transcontinental Railroad. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade level. Packed with information and primary source maps, images, and...

Worksheets designed for use in Spanish immersion classrooms, as a supplement for parents to use with their children for extra practice, or for use by any classroom teacher who wishes to incorporate Spanish instruction in the classroom in the curriculum areas of language arts, math, social studies, and science.