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.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

A 2014 survey by the Substance Abuse and Mental Health Services Administration showed that 8.7 million youths ages twelve to twenty reported drinking alcohol beyond “just a few sips” in the previous month. Those who start drinking before age fifteen are five times more likely to become dependent on alcohol than those who begin at twenty-one. This resource shows young people how to help a friend who is abusing alcohol. It arms them with facts about alcohol, how it affects the teen mind and body, how to look for signs of a problem, and how to bring others on board to help.

Describes the Boston Tea Party, including the events leading up to the party, its immediate effects on American-British relations, and why it is still an important event today.

Las ratas y los seres humanos han sido enemigos naturales por millones de años. Pero ahora, de forma repentina y monstruosa, el equilibrio de poder ha cambiado por primera vez y las ratas empiezan a cazar a los humanos sin piedad. James Herbert fue uno de los escritores más vendidos del Reino Unido (posición que mantuvo desde que publicó esta, su primera novela) y fue uno de los mejores escritores mundiales de terror. Sus libros han sido traducidos en más de 30 idiomas, incluyendo ruso y chino y sus 19 novelas han vendido más de 42 millones de ejemplares en todo el mundo. Como escritor, ...

Una novela para sentirla y vivirla en imágenes, a modo de guión cinematográfico, listo para rodar. Una historia de máximo interés para los jóvenes de hoy.