El libro de las respuestas a todos los porques / The Answer book on all the Whys

What's hidden in the woods? Look closely through three colored transparent sheets to discover hidden secrets. Start with green and nothing moves. As if by magic each sheet shows animals and plants coming to life. Watch nature's surprises emerge in front of your eyes.

Rina Komemoski..., una rana fuera de lo común, aprende el valor de la amistad en medio del hambre implacable... ¿Será posible?

Ésta es la historia de Abul Qasim, el médico del califa Abderrahmán III. Abul operaba cataratas, hernias y bocios; hacía traqueotomías, trepanaciones, amputaciones y, incluso, intervenía cólicos misereres.

Imagine getting ready for bed when the sun is still shining, or eating lunch when it’s dark outside. How are such things possible? Learn how people in places such as Alaska, Norway, Iceland, Sweden, and Canada cope with days and days of sunlight and darkness. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It 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...