Energía del viento

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

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

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

This book looks at the numbers in Spanish. Main text on each page is provided only in Spanish, with simple, labeled photographs providing support. A "dictionary" spread at the end of the book features all the vocabulary words in both Spanish and English, and also includes a pronunciation guide.

Eleven-year-old Jenny, whose family came from Russia to America to start a new life, meets the famous Russian composer on his 1891 trip to the New World and writes about it in her diary.

Catorce relatos, instantáneas dolidas y concisas, buscan abrir atisbos hacia el fondo oscuro que comunica el mundo de la infancia con su apertura hacia el mundo adulto, entendiendo por tal el universo del dolor en la época de la guerra civil.

Todo el mundo ama a los pandas. Nos encanta verlos jugar, trepar, dormir y masticar. ¡Pero cuidado, también rasguñan—mira ese árbol! Ilustrado con maravillosas imágenes que registran el lugar único de este animal en China y en todo el mundo, este libro en español es para niños de Nivel 2 que leen solos o con ayuda de vez en cuando.