How Do You Measure Time?

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

La lucha por el poder se extiende más allá del mar de Plata. Los límites se desdibujan: desaparecen las fronteras entre los imperios, el bien y el mal se confunden y la magia vaga por el mundo mortal.MAGIACada vez más presentes en la Mytica terrenal, los seres mágicos modelan y desvían las frágiles vidas de los humanos sin prever las consecuencias.AMORTortuosas e inesperadas, las pasiones sacuden a humanos e inmortales por igual, trenzando sus destinos.TRAICIÓNMientras se crean y se deshacen alianzas, la víbora invisible de la traición emponzoña incluso a los seres más...

Learn about the rich history of Mission Santa Cruz: how it started, the people who ran it, the indigenous population, and its legacy today.

Did you know the first battery-powered vehicle was created in the 1830s? People who attended the 1892 World's Fair in Chicago could see one. And in 1894, you could buy an "Electrobat" and travel 25 miles on a single charge! Since then, EVs have surged in popularity and have become much more technologically advanced. Learn the history of EVs, how they work, why they're good for the environment, and discover the future of the electric vehicle! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging...

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.