Submarinos de La Armada de Ee.Uu./U.S. Navy Submarines

"Simple text and color photographs describe the units and tools used to measure time--in both English and Spanish"--

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. 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, from the initial research and brainstorming sessions, through the design and testing ...

[English] What is the difference between a savanna and a prairie? How do bison, zebras, and other grazers avoid hungry grassland predators? Trek across the plant-covered landscape of this book, and find out what makes grasslands one of Earth's treasures. [Spanish] ¿Qué diferencia hay entre una sabana y una pradera? ¿Cómo escapan los bisontes y las cebras de los depredadores? Camina entre los altos pastos de este libro. Descubrirás por qué los pastizales son uno de los grandes tesoros de la Tierra.

Love story set in Madrid during the last days of the reign of Alfonso XIII. Isabel, an educated young woman from a pro-monarchy family meets Joaquín, whose background is very different. The author means to offer a complete and accurate picture of the ten turbulent years that determined the history of Spain in the twentieth century.

365 actividades para jugar sin pantallas en familia: ¡divertirse sin tecnología es posible! Que la infancia pasa demasiado tiempo con las pantallas es cierto, y que existen muchas alternativas, también lo sabemos pero# ¿por dónde empezamos a buscar? Ante la falta de inspiración, este libro propone 365 actividades para jugar sin pantallas con toda la familia. Ideas para disfrutar en diferentes espacios como el hogar, la ciudad y la naturaleza, crear vínculos emocionales positivos, reducir el estrés y acompañar desde la empatía, el amor y respeto.