¿Cómo se cultivan los alimentos?

Presents a typical day of a bulldozer driver, with the safety equipment he puts on, the levers, beeper, and blades he uses in its operation, and what he does to get the bulldozer ready for the next 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...

Tercera aventura de Maya Erikson Nada más ver el extraño avión que los llevaría a su destino, Maya entendió que aquel no iba a ser un viaje normal; «la Antártida es un lugar hostil», les dijeron. Al principio, todo parecía tranquilo, hasta que en una inocente excursión con sus compañeros presencian un misterioso suceso. Cuando el equipo de investigación llega, su extraña actitud los hace desconfiar... ¿Qué está pasando realmente? Mientras intentan averiguarlo, acaban descubriendo algo que nadie se imaginaba. Entonces empieza su lucha por salvar el continente. **** Maya Erikson ...

Highlighting the increasing loss of values that modern society is suffering, a unique guide teaches the attributes of tolerance, communication, respect, and equality--keys to a happier coexistence and life.