Exploremos las rocas sedimentarias (Exploring Sedimentary Rocks)

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.

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.

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.

Extraordinario documento histórico. Un diario de viaje sobre la primera circunnavegación de la Tierra en 1522, realizada por Fernando de Magallanes y Juan Sebastián Elcano. Adaptación realizada para lectores a partir de 13 años. Esta adaptación sigue el texto original, pero no es un resumen ni una mera ¡ transcripción modernizada. Reduce pasajes o informaciones irrelevantes que harían premiosa la lectura. La mayor intervención afecta a la sintaxis. La hechura y la extensión de la frase original se aligeran para facilitar la lectura fluida. Los diálogos indirectos pasan a ser...

La princesa Rubí encuentra un reloj extraño en el bosque, lo que provoca que el destino se enfade al creer que lo ha robado y la castigue hundiendo su castillo en las profundidades del mar, dejando a la realeza y a todo su pueblo en la más absoluta miseria. Para salir de este castigo, la princesa deberá ir al misterioso bosque encantado poniéndose en riesgo por sus peligrosas y extraordinarias criaturas. Tendrá que encontrar en cada rincón pistas para unir el cuerpo de su novio que está esparcido por todo el bosque. La lupa y sus misterios se traslada a un mundo de fantasía, donde se ...

Spanish speakers can now learn the truly inspiring story of the first Latin Supreme Court Justice. Los hispanohablantes pueden ahora conocer la historia verdaderamente inspiradora de la primera jueza latina del Tribunal Supremo. Outspoken, energetic, and fun, Sonia Sotomayor has managed to turn every struggle in life into a triumph. Born in the Bronx to immigrant parents from Puerto Rico, Sonia found out at age nine that she had diabetes, a serious illness now but an even more dangerous one fifty years ago. How did young Sonia handle the devastating news? She learned to give herself her daily ...

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.