César Chávez

¿Está prevista una misión humana a Marte? ¿Cómo se captura un cometa? ¿Cómo es el centro de la Tierra? ¿Existen los extraterrestres? ¿Es posible enseñar a nuestro cuerpo a curar las heridas? ¿Conseguiremos viajar en el tiempo? ¿De qué está hecho el Universo? ¿Cómo serán los videojuegos del futuro? ¿Seremos los seres humanos sustituidos por robots? ¿Cuáles son los descubrimientos científicos que cambiarán nuestras vidas en el próximo medio siglo? En este libro encontrarás algunas preguntas que te has hecho sobre el futuro y sus respuestas; con él, entenderemos mejor el ...

California is home to the largest school system in the country. Students will learn about the history of California’s schools and higher education system with this nonfiction text that builds students’ reading skills and social studies content knowledge. The intriguing primary source maps, letters, documents, and images provide authentic nonfiction reading materials and keep students interested in learning. Text features include a glossary, index, captions, sidebars, and table of contents. This book connects to California state studies standards and the NCSS/C3 Framework and features...

Until just over 150 years ago, northern Mexico extended thousands of kilometers farther than its current border with the United States. Many different indigenous groups flourished in that region before the Conquistadors arrived. What we know about their lives and customs is the result of archeological discoveries and the chronicles of the first Spanish priests and soldiers that had contact with them.

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.