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

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.

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.

Esta primera novela de Fernando Claudín es un relato breve pero de una intensidad y hondura tales que sobrecogerá al lector y lo hará reflexionar sobre algunos de los grandes problemas pendientes de nuestro tiempo.

Presents a collection of poetry and lullabies by a number of Colombian authors and poets including Jose Silva and Eduardo Castillo.

What does masculinity or being a boy mean in this society? If you are a boy, or ever were, The Golden Book of Boys contains words and images that will help you remember how powerful you are, but powerful in a different way than you may have been told until now... It is a book against the tide. A strange book. A journey back to how wonderful you are. A book that invites you to respect yourself, to obey yourself and to be yourself (something that nobody usually tells us). Maybe it will help you to remember how wonderfully vulnerable you are and to heal old wounds.

Families can be big or small, but all resemble each other in one aspect: they have a past and a present that, is also part of a broader history, that of a culture or race, or that of the world. The reader will see that family trees are used both by historians and everyday people who trace generations of relatives. Although family trees imply blood relations, the ties of love and friendship are often just as important.