La represa de Itaipú

Describes how the rig was built, how it stands out in the water, and how much drilling it does in a day.

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

¿Quién es Mónica y quiénes son los millares de jóvenes que están detrás de las rejas? Personas ignoradas por el amor de alguien, destruidas por los matratoos en la infancia y la adolescencia, o simplemente que erraron por no encontrarle sentido a su vida, y avanzaron por donde les pareció mejor para hallar lo que toda persona anhela: gozar de libertad y felicidad. Hay otros millones de seres humanos que, sin estar atrás del hierro de las rejas, son víctimas de otras cárceles que los aprisionan sin piedad. Son las cárceles del miedo, el odio, la pobreza extrema, la carencia de amor ...

Simple text and photographs introduce the concept of symmetry as displayed by familiar creatures and objects.

Teach young students about ways to serve their communities. This Spanish-translated book encourages readers to help others and do their part in the community. Primary source images support the text and engage readers to help them better understand the content. Informational text features help students navigate the text.