Nuevo Proyecto Planeta amigo, conocimiento del medio, 5 Educación Primaria, 3 ciclo (Madrid)

Técnico electricista 4 - Curso visual y práctico Corriente alterna En esta clase nos encargaremos de profundizar en la generación de corriente alterna y conoceremos los valores típicos de este tipo de corriente. Además, revisaremos las inductancias, los capacitores y la aplicación de la corriente alterna en estos componentes.Para terminar, veremos los efectos propios de la corriente alterna, y caracterizaremos la resonancia y los armónicos.

Now available in Spanish bilingual editions, this best-selling series offers big, brainy science for the littlest listeners. Accurate enough to satisfy an expert, yet simple enough for baby, this clever board book explores the ups and downs of gravity. When baby drops food from a high chair, why does it fall? Beautiful, visually stimulating illustrations complement age-appropriate language to encourage baby's sense of wonder. Parents and caregivers may learn a thing or two, as well!

With every new feat, there is at least one big failure. Learn about some of the biggest technological feats and failures in human history in this fascinating, Spanish-translated nonfiction title that allows readers to discover some of the technological innovations that have made life easier. Featuring detailed images, charts, and graphs, informational text, and intriguing facts, children will be engaged and captivated from cover to cover!

A fierce ogre finds that children are becoming too smart for him to catch and eat. Instead, he passes his time writing arithmetic problems to challenge the children.