¡Todos los colores!

In AD 79, the residents of the booming Roman city of Pompeii were shocked when a nearby mountain exploded, releasing superhot ash, rock, and gas on the surrounding areas. What happens next is the extraordinary account of a volcano in action. Though the people who didn't flee Pompeii were doomed, the volcano preserved their remains, allowing us to better understand a fascinating time in the Roman Empire. Astonishing photographs of Pompeii, primary source records of the occurrence, and riveting text are just some highlights of this high-interest volume.

Even young readers were likely saturated with exposure to Hillary Clinton over the course of the 2016 presidential election. But do they really know who she is and what she has accomplished? This volume bridges the gap between current news stories and what elementary readers really know about the first female presidential candidate. By illuminating the life and story of this powerhouse of politics, young readers can learn and be inspired by a story of perseverance, service to others, and commitment to beliefs. With a vivid, age-appropriate narrative, this much-needed volume is sure to be...

Año 449, el futuro del mundo pende de un hilo. El otrora poderoso Imperio romano yace vulnerable. El enorme ejército de los hunos se encuentra reunido a un tiro de piedra, al otro lado del Danubio, preparado para atacar. El general romano Cayo Flavio Aecio sabe que Atila está sediento de la sangre de sus antiguos captores y sueña con su destrucción. Pero no recibe la ayuda necesaria y la horda arrasa la débil frontera, masacrando todas las guarniciones que encuentra a su paso. Atila planea una estrategia que le llevará a las mismísimas puertas de Roma. Pero antes deberá valorar si el ...

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.