Benjamin Franklin 6-Pack

Explores Energy, How We Use It, Different Types And Forms, Conservation And Transformation Of Energy, Renewable Vs. Non-Renewable, And Energy Conservation.

While the Great Depression was indisputably a difficult period in American history, it did lead to certain developments that we still benefit from today. One for the most significant examples of this is Social Security, which helps a whole generation of retired Americans. The book offers a concise description of the Great Depression, including analysis of its causes and its effects. Chapters focus on different aspects of the period, including culture, the arts, and science and technology. The dynamic design displays images of posters and experiences from the Depression era. This informative,...

Learn how light pollution prevents us from seeing the stars and causes other problems as well. This Spanish book features a hands-on STEAM challenge that gives insight into how the engineering design process is used to solve real-world problems.

¿Qué hace un abuelo científico para explicarles a sus nietos todas esas cosas que seguro que algún día querrán saber? Fácil: crear un blog e ir contando en él todo lo que le apetece: por qué los viajes espaciales son tan importantes como los museos, por qué es más fácil desordenar una habitación que ordenarla, cuántas probabilidades hay de que caiga en la Tierra un meteorito realmente grande... ¿Y si luego no son solo sus nietos los que se aficionan a leer el blog, y se crea un círculo de amigos a distancia? ¿Y si no todos esos amigos son quienes parecen ser? Mezcla de libro...