Mujeres en las ciencias (Women in Science)

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

¿Estarías dispuesta a vivir el amor de tu vida cuando tu vida se acaba? Debido a una grave enfermedad, a Daniela le quedan dos años de vida. Pero es un tiempo del que piensa disfrutar al máximo con su amiga Cat, que siempre la lleva a hacer locuras. Y una de las locuras de Cat termina con Daniela chocando (literalmente) con Yon Malcolm, el actor de moda del que está perdidamente enamorada... y con quien exprimirá los días de vida que le faltan. «Hasta que el cielo se apague es una historia difícil de olvidar. El primer amor, la amistad de toda la vida, la familia... cada detalle del...

"My name is Book and I'll tell you the story of my life." Nonfiction like you've never read it before! Quirky and humorous, part poetry, part reflection, this is the story of the book told by none other than Book himself! This extraordinary character begins by reminding us of his origins in oral story and clay tablets, then ponders on papyrus, parchment and paper, and on being a scroll who finally gets a spine. We see him lovingly illuminated by monks in medieval monasteries, then witness the massive changes brought about by the invention of the printing press, and the coming of paperbacks...

La impresionante historia de la activista social y autora de éxito nacional Julissa Arce sobre su niñez en Texas y su lucha por alcanzar su Sueño Americano, aun siendo indocumentada. Nacida en Taxco, México, Julissa Arce se quedaba en su pintoresco pueblo durante meses con sus dos hermanas, una niñera y su abuela, mientras que sus padres viajaban incansablemente a Estados Unidos con la esperanza de construir una casa y buscar mejores oportunidades para sus niños. Un día, sus padres deciden traer a Julissa a Texas a vivir con ellos. A partir de ese entonces, Julissa vivió en secreto...

Learn about the Victorian era while building your knowledge of equivalent fractions! Students will learn fractions while engaged in reading about the innovations of the Victorian era. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. The glossary, index, and table of contents will further understanding of reading and math concepts, and the full-color images, practice problems, and math graphs and charts make learning math easy, practical, and fun. The Explore Math sidebars and Math...