Mi mamá

Learn more about the renowned British scientist, professor, and author who spent his entire career trying to answer the question: "Where did the universe come from?" Stephen Hawking was born exactly three hundred years after the death of the scientist Galileo, so maybe it was written in the stars that he would become a famous scientist in his own right. Although he was diagnosed with a neurological disease at age 21, Stephen did not let the illness define his life. Known for his groundbreaking work in physics, and identified by his wheelchair and computerized voice system, Stephen continued...

In this book, you'll find dramatic photographs of big cats from all over the world. See snow leopards on icy mountains, lions on African grasslands and jaguars in the Amazon rainforest. You can also read vivid descriptions of how big cats move, hunt and find a mate.

¿Dónde llevas a tus mascotas cuando están enfermas? Dado que los animales no pueden decir lo que duele, los veterinarios están especialmente capacitados para descubrir lo que está mal y ayudar a sus mascotas a mejorar y mantenerse saludable. Este texto ofrece fotos dinámicas que atraerán a los lectores jóvenes, mientras que las preguntas de pensamiento crítico y un glosario de fotos ayudan a desarrollar habilidades de aprendizaje de no ficción. Where do you take your pets when they are sick? Since animals can't say what hurts, veterinarians are specially trained to find out what is...

Las calles de una ciudad están llenas de historia, curiosidades y viejas leyendas. Descubre todo lo que hay que saber sobre Madrid con esta divertida guía, pensada para que los jóvenes viajeros disfruten conociendo esta interesante ciudad. Además, encontr