Sexo para adolescentes

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...

This book introduces you to giraffes, including their size, diet and everyday behavior, which highlights differences between those in the wild and those living in a zoo habitat.

Surveys the life of Sojourner Truth, who escaped from slavery and became famous as an advocate of equal rights for women and blacks.

Un día cualquiera de 1936 se convierte para Carmen, como para tantos otros, en una terrible pesadilla. Curtida por los amargos sinsabores de la guerra, mancillada en lo más íntimo y donde más duele, se convierte en espía del Servicio Secreto soviético, que desea apoderarse del arma mortífera que Hitler está experimentando en la contienda española.