Los estados de la materia — Los gases

Find out about the different types of winds, including global winds, trade winds, local winds, and breezes. Learn about extreme wind weather like hurricanes and tornadoes. Translated title: Gusts and Gales: A Book About Wind

What makes a family anyway? Featuring Waldorf-style illustrations and depictions of families of all shapes, sizes and colors, this book gets kids talking about their own families while opening their eyes to the fact that even though families don't always look the same, they all share one special thing-love. This is the Spanish language edition of the children's book. Que hace a una familia de todos modos? Con ilustraciones y representaciones de las familias de todas las formas, tamanos y colores de estilo Waldorf, este libro hace que los ninos a hablar de sus propias familias al abrir sus...

Sitting Bull first went to battle at the age of 14. He grew to be widely respected for his bravery and insight, and became chief of the Lakota nation in his thirties. By the time he met General Custer at the Battle of Little Big Horn, his courage was legendary. Though he soundly defeated Custer, public outrage at the defeat brought thousands of cavalrymen to the area, where it took four more years before the brave chief would surrender. He was forced onto a reservation where he was later killed when police attempted to arrest him.

En una noche clara, debería poder ver las estrellas. Pero no siempre podemos verlos. La contaminación lumínica nos impide ver las estrellas y también causa otros problemas. Aprenda sobre la contaminación lumínica con este libro de STEAM que despertará la curiosidad sobre los temas de STEAM a través de ejemplos del mundo real. Creado en colaboración con la Institución Smithsonian, presenta un desafío STEAM práctico que es perfecto para los espacios de creación y que guía a los estudiantes paso a paso a través del proceso de diseño de ingeniería. Establezca conexiones...