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Bike riding is a lot of fun, but it can also be dangerous. Read about how people have made cycling safe over the years. Learn how bicycles have changed over time and how bike parts, equipment, and trails make cycling safer. Created in collaboration with the Smithsonian Institution, this Spanish 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 advice from Smithsonian employees...

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Este libro es un cancionero sencillo para colaborar en la formación musical de la infancia sin pretensiones de establecer ninguna metodología convencional, propiciando que los elementos musicales básicos queden profundamente arraigados a través de la creatividad.

En este libro se explica el llamado Credo de los Apóstoles y con él podrás entender mejor los misterios de la fe, es decir el contenido de lo que creemos.