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

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.

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.

Albores del año 1875. Las familias de Luigi y Luigia dejan su caserío alpino y se unen a la marea emigratoria. ¡Les sobraban razones para arriesgarlo todo! En realidad era muy poco lo que dejaban atrás. Sus brazos y sus sueños eran sus mayores y únicos tesoros. Lo demás se daría por añadidura, o no... Junto a Giovanni Battista y Angela se unen a la reciente fundación de la colonia Villa Libertad, en el noreste entrerriano. ¡Todo está por hacerse! El lector está invitado a recorrer el desafiante y apasionante itinerario histórico y biográfico de estas dos familias vénetas en...

The American Civil Rights Movement of the 1950s and 1960s marked a shift in how African Americans were treated in the United States. This volume highlights the important events and figures that made this movement successful. The book introduces readers to important activists who fought for civil rights by raising their voices and refusing to accept unfair laws. Photographs and primary sources provide readers with a firsthand look at the history of the movement. Finally, readers will learn what can still be done to further equality for African Americans in the United States and how they can be ...

Los tiburones son criaturas increíbles que nosotros los humanos recién comenzamos a comprender. Este libro, con fotografías de cientos de tiburones y la información más reciente, animará a todos a hacer algo por estos animales en peligro de extinción.

Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.