Agujeros negros (Black Holes)

You re growing up and your body is changing. If you re a girl, you re likely experiencing the start of menstruation, your breasts are making themselves known, and you re noticing new hair that you might want to be rid of. If you re a boy, you may be experiencing something strange as you sleep, or sweating a lot and not wanting to shower. This book is a complete guide to the terrible and marvelous world of puberty."

Junípero Serra was an influential Franciscan missionary who created missions that stretched from San Francisco to San Diego. His impact on California is still felt-and debated-today. Introduce students to his life with this nonfiction biography that builds students' reading skills and promotes social studies content literacy. The dynamic primary source maps, letters, 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...

Tells the story of Jamestown, the first permanent English settlement in North America. Written in graphic-novel format.

Dos frentes abiertos contra la naturaleza en lugares distintos. Por un lado, el incendio de un bosque en Asturias que Luis, miembro de Icona, intentará detener. Por otro lado, la lucha de Daniel, su hijo, para impedir el derribo de los árboles de su calle en Madrid. ¿Quién sadrá victorioso de esta cruenta batalla? Una historia que muestra la importancia de la conservación del medio ambiente.