La ciencia de los animales

"This title introduces students to the world of agriscience with in depth information on how animal science affects our daily lives. It also gives a wide array of careers in this growing field, from biologists to geneticists, to zoologists"--

Farmers use tractors to plow their fields. Tractors are also used on construction sites. The biggest tractors are as wide as a road. Learn more about these machines in Tractors, an AV2 media enhanced book

La madre de Lucía ha muerto. Ahora los secretos, los misterios y las aventuras no han hecho nada más que comenzar... Lucía entra en Alma de la Tierra, un mundo en el interior del planeta repleto de magia y maldad donde conocerá a Max e ingresará en Savards, el Hogar de las Ocho Torres. Juntos no solo descubrirán los misterios de la magia, sino también los del amor. Sin embargo, el robo de un objeto legendario les obligará a abandonar la seguridad de Savards para iniciar un peligroso viaje a través de Alma, en el que se enfrentarán a todo tipo de enemigos. Y es que tendrán que...

Brief biographies of well-known men and women, from ancient time to the present day, who made significant contributions in various fields.

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...