Ciudad antes del alba

Introduces the concept of heat, how it's created, how it affects materials around it, and how heat is used.

Maria Zef no llega a los 15 años, pero ya está acostumbrada a la dureza de la vida en el campo, un mundo de hombres frente al que chocará su espíritu soñador y libre. Tres mujeres en un camino de la Italia rural: una madre exhausta y enferma y sus dos hijas, niñas todavía. Maria Zef, la hija mayor, tira, como si fuera una bestia, de un carromato cargado de cacharros en venta al tiempo que vigila constantemente para que su madre siga en pie. Como cada año, han bajado de las montañas en las que viven antes de que la nieve las inmovilice allí durante meses de frío y pobreza. El viaje...

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...

Five and counting! So far, astronomers have discovered five dwarf planets in our solar system. Pluto, which was once thought of as the ninth planet, is today classified as a dwarf planet. This book looks at the current dwarf planets, characteristics, size, and orbital patterns, as well as the three rules scientists follow to characterize these tiny, round space objects. Every day new discoveries are being made. Who knows how many dwarf planets we will find in the future! This book will allow students to understand that patterns in the natural world can be observed, used to describe phenomena, ...