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

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

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.

El autor nos propone, en once talleres, un sinfín de actividades para trabajar el lenguaje en la E.S.O.: redacción de autobiografías, relatos a partir de una palabra, dramatizaciones, dictados, canciones, juegos, etc.

Esta antología encierra en todas sus páginas toda la sensibilidad y la curiosidad de un hombre que sabe contar historias y que utiliza la poesía como medio para transmitirlas. José Hierro escribe sus poemas con palabras sencillas que suenan como una composición musical porque para él la poesía no es presumir con imágenes de listillo.

Many people who live in the city do not have space for gardens. But they still want the fresh food, flowers, and herbs that come from a garden. So, they plant gardens in pots or planters. Sometimes they form a team and find an empty lot to plant their gardens in. People use patterns to plan how best to use their space. This is a great way for people to live in the city and have a beautiful garden. What would you plant in your city garden?

3 million years ago, men built the first stone tools for hunting. 2 million years ago, men walked in a completely upright position and had already discovered fire. 1 million years ago, men organized themselves in groups... Okay, okay, but what about the women? Where were the women in the meantime?