¿Por qué hibernan los animales? (Why Animals Hibernate)

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

Simple text and photographs introduce the purpose of money, how old coins and paper money are disposed of, and how new money is made.

El robo de un diario personal permite que sus contenidos circulen de boca en boca por todo el palacio imperial. Así se descubre que dos mujeres, ambas al servicio de la emperatriz, se han enamorado del mismo hombre, un intrigante de la corte, desterrado por seducir a la vestal de Ise, una joven que ha sido elegida como protectora del reino.

When a Roman widow, Cartila, shows unusual interest in Flavia's father, Flavia decides to discover Cartila's true motives by performing twelve tasks, just like the Greek hero Hercules.

A partir de la aparición de Pedro Páramo , en marzo de 1955, Rulfo escribe su segunda novela, El gallo de oro. Ambientada en el mundo de las peleas de gallos y concebida como proyecto cinematográfico, probablemente se trate de la obra menos conocida del autor mexicano. No obstante ese desconocimiento, la valoración literaria está al mismo nivel que Pedro Páramo y Llano en Llamas .RM publica esta edición especial de El gallo de oro con dos textos críticos de José Carlos González Boixo y Douglas J. Weatherford, sobre la naturaleza literaria de esta narración, a la que se incorporan...