Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

La separación de los padres no es fácil para nadie, y menos para los niños. Este librito ayuda a los pequeños a superar este paso. Emily Menéndez-Aponte (hija de padres separados) ofrece una guía llena de ternura y realismo para que los niños comprendan que la separación de sus padres no es culpa de los hijos y que ellos siempre tendrán quien los quiera y los cuide. Ofrece consejos para sobreponerse a los sentimientos confusos y solucionar los problemas que se puedan presentar, como conflictos deslealtad o cambios de planes. Las ilustraciones de este libro y sus profundos contenidos...

In 1848, gold was discovered in California, attracting over 300,000 people from all over the world, some who struck it rich and many more who didn't. Hear the stories about the gold-seeking 'forty-niners!' With black-and-white illustrations and sixteen pages of photos, a nugget from history is brought to life!

Regina no sabe que un simple contrato cambiará su vida para siempre, y Emma no sabe que ese contrato le traerá aquello con lo que siempre ha soñado

Travel to the 22nd century in this captivating, Spanish-translated nonfiction title that allows readers to discover the future of space. Elementary readers will be fascinated with the possibilities that may await human life in the future. Readers will discover the technology that may be used to one day allow humans to live on another planet, new worlds, alien life, and artificial intelligence. Featuring vibrant photos, images, informational text, a glossary of terms, and a list of helpful websites for more explorations, children will be excited and enthralled as they move through this title....