Con la energía del Sol ebook

Learn how light pollution prevents us from seeing the stars and causes other problems as well. This Spanish book features a hands-on STEAM challenge that gives insight into how the engineering design process is used to solve real-world problems.

It was September 14, 1814, and America and Great Britain were at war. Frances Scott Key watched from the deck of a British ship, where he was being held captive, as cannons exploded around them. After 25 hours, the fighting ceased and Key peered through the clearing smoke, looking for some sign as to the outcome of the battle. Was the American flag still flying? His wartime experience inspired Key to write a poem, which was later set to music and became America’s national anthem. This book tells the story of the inspiration behind our national anthem, which helped transform the flag into a...

¿Qué sucedería si se mezclaran los avances tecnológicos del siglo XXI con los poderes ocultos de la ouija? ¿Qué peligros esconden la nanotecnología y la ouija virtual realizado a través de internet? Una empresa dedicada a investigaciones con tecnología espacial, revoluciona el mundo con inventos para acabar con el cáncer mediante la nanotecnología, evitar accidentes de tráfico con su red de carreteras inteligentes, curar enfermedades psicológicas con realidad virtual o hacer viajar la electricidad por ondas, convirtiendo a los cables y enchufes en pequeñas piezas de museos. El...

El Conocimiento del Medio nos ayuda a convertir nuestro mundo en un PLANETA AMIGO. Nos permite conocer la naturaleza, valorar nuestro entorno y desarrollar actitudes de respeto hacia otras culturas y otros pueblos. Con el Conocimiento del Medio podemos descubrir cómo somos, compartir con los demás nuestros conocimientos y contruir entre todos un PLANETA AMIGO, en el que convivamos en un mismo entorno personas con diferentes formas de pensar.

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.