¿Por qué hibernan los animales? (Why Animals Hibernate)

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.

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.

En esta guía recorremos las posibilidades que nos ofrece el abanico de servicios y aplicaciones Google. Revisamos sus características y funcionamiento así como también los mejores trucos y secretos para aprovechar estas herramientas al máximo. Desde el omnipresente Chrome y nuestras cotidianas búsquedas, hasta los servicios más avanzados como Analytics y Trends, todas las aplicaciones pueden ofrecernos más ¡si las investigamos y aprendemos más sobre ellas!

This folklore treasure chest is filled with tongue twisters, riddles, poems, songs, and stories. These timeless tales, and the Victorian illustrations that accompany them, highlight the joys of children's daily activities. Text copyright 2004 Lectorum Publications, Inc.

Se introduce a los niños en la magia de dos tipos de teatro tan antiguos como interesantes: el de las sombras y el de las máscaras. Disponible en catalán, para comprarlo haz clic aquí.

Biography of Benjamin Franklin, a great American inventor, statesmen and diplomat as well as one of the founding fathers of the United States of America. In graphic novel format.