La Energía Solar (Solar Energy)

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

En este libro, Alfonso Pérez-Agote aborda los temas centrales de su trayectoria académica e investigadora a lo largo de las últimas cinco décadas: la identidad, el nacionalismo, la religión, la diferenciación social y los variados problemas que enfrenta la teoría sociológica. El autor reelabora cuestiones como el problema general de la identidad colectiva, las raíces sociales y los mecanismos sociales de la reproducción del nacionalismo vasco, así como su politización y radicalización desde el franquismo hasta la desaparición de ETA. Centra también su atención en el proceso de ...

The crustacean subphylum can be broken down into decapods, amphipods, copepods, and other types. This title offers readers from grades one through four comparisons between the needs and roles of different crustaceans, which will allow readers to understand the subphylum’s importance. Readers will recognize and expand their knowledge about familiar species like the lobster and the shrimp, while being introduced to the likes of the wood louse and zooplankton. Dynamic photography and methodically organized information will help readers examine the many sizes, types of limbs, and other features ...

Anne Frank's diary has become one of the most widely read books in the world. Readers will learn about Anne as she went into hiding from the Nazi Party in this Spanish-translated nonfiction title. Through vibrant images, informational text, timelines, and a glossary of terms, readers will discover the hardships Anne and her family went through in order to avoid being sent to a concentration camp. This inspiring biography enables children to look up to Anne and find hope in every situation, just as she did.

Qué es el Sol? El sol es una estrella, una bola de gases muy calientes. Es una fuente de vida, de calor y luz. Este libro es parte de la colección Altea Benjamín, la enciclopedia para responder a las preguntas de los niños que ya leen solos. ENGLISH DESCRIPTION How old is the Sun? What did humans think about the Sun in ancient times? How can sunbeams be trapped? Our most important source of life, light, and energy is just a ball of hot gas...! This book is full of information so amazing as the Sun itself.