Siglo XXI: Misterios del espacio sideral

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

Nature is not always kind. Natural disasters like earthquakes and storms can wipe out cities. Entire cultures and their histories are at risk of being lost. When disaster strikes, some people work to save cultural items. They preserve culture for the future! Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for...

Yendo un paso más allá de historias bíblicas, este libro a todo color anima a los niños de 5 a 8 años de edad, a detenerse y pensar en el significado de cada oración presentada. Más de cinco docenas de oraciones se incluyen en divertidas historias y son acompañadas con ilustraciones y diseños a todo color. For the first time in Spanish, this devotional book encourages children ages five to eight to stop and think about the meaning of more than five dozen Bible stories. Devotions are drawn from the breadth of scripture and are brightly illustrated for young readers’ pleasure.

«¡Por fin ha regresado la fantasía a la literatura!». ANA MARÍA MATUTE. Petra tiene doce años, un padre inventor y una araña parlante y lectora con problemas de insomnio. Pese a todo, su vida se desarrolla sin grandes contratiempos? hasta que el príncipe Rodolfo hace llamar a su padre para encargarle algo: la construcción de un reloj astronómico sin igual, que, una vez terminado, enseguida cobra fama por su belleza. No obstante, Petra pronto se entera de lo que oculta el reloj: un mecanismo capaz de manipular el clima mediante el tiempo. El padre de la niña trata de tranquilizarla, ...