Exploremos el ciclo de la roca (Exploring the Rock Cycle)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

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.

Text and photographs present an introduction to the dog breed known as the German shepherd, including its growth from puppy to adult, and pet care information.

INCLUYE RECETARIO CON VARIAS RECETAS Aprenderás a elaborar auténticos jabones naturales mediante el llamado “proceso de saponificación en frío”. Este tipo de jabones artesanos limpian en profundidad todo tipo de pieles, especialmente las pieles delicadas y sensibles. No contienen ningún tipo de detergente y son ecológicos y biodegradables. Aprenderás a personalizarlos con diferentes propiedades para cada tipo de piel. Hacer jabones en casa es barato. Los ingredientes necesarios para hacer jabón son económicos y fáciles de conseguir. Además, puedes hacer los jabones para tu...

California grew by leaps and bounds between the Gold Rush and 1900. People from different backgrounds emigrated to California from across America and around the world in search of a new life. This primary source reader focuses on immigration in California from the time of the Gold Rush to the end of the nineteenth century. Primary source documents allow students to see different points of view, and help students look at the world and current issues with a historical lens. This Interactiv-eBook builds literacy and social studies content knowledge through the use of intriguing primary sources...

Divi rtete junto a Juan y Mar a contestando las perspicaces preguntas del sombrero. En este ingenioso libro los acertijos muestran c mo los cient ficos buscan todas las posibles respuestas a un problema y comparan una respuesta con la informaci n que ya tienen, c mo eliminan lo que no encaja en una situaci n planteada y, as , llegan a la respuesta correcta. quieres hacer trucos con sombreros?