Experimentos sencillos con sólidos y líquidos

Tras la muerte de una entrañable amiga, Carlos Alberto sufre una depresión. Su madre lo lleva a un psiquiatra, que le confía a un colega paralítico cerebral. Carlos se enfrentará a los prejuicios de su madre y aprenderá nuevos valores y el verdadero sentido de la responsabilidad.

Navigation instruments have changed over time. Lodestones, sunstones, and sextants helped early navigators find their way. Modern technology makes navigation more precise than it has ever been. But the roots of navigation still remain. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for makerspace activities. It ...

Surveys the life of Nat Love, African American cowboy, renowned for his riding, roping, and sharpshooting.

The combination of violins, trumpets, sombreros, and song possesses the power to not only lighten the heart but weigh it down as well. This book journeys to the time and place where mariachi music originated and reveals the various musical traditions that combined to form the richest, most popular, and most highly regarded tradition of Mexico. La combinación de violines, trompetas, sombreros y canciones capaces de desgarrar o alegrar el corazón de cualquiera, mexicano o extranjero. Este libro viaja a través del tiempo y las regiones donde se originó el mariachi y descubre las distintas...