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

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.

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.

Entre las criaturas fantásticas del Bosco y las intervenciones en el territorio de Robert Smithson median cinco siglos y una idea: la naturaleza como motor de la práctica artística, un hilo conductor filtrado por la sensibilidad de artistas de la talla de Leonardo, El Greco, Klimt o Dalí, entre otros tantos que el lector encontrará en este libro. Y es que la naturaleza es una y muchas, un concepto viajero que ha mutado en múltiples existencias, al ritmo de cada época histórica: desde la imagen del cuerpo renacentista a los imaginarios surrealistas, pasando por los géneros del...

Describes different kinds of artists, the type of work they produce, the tools they use, and the skills and training they need to have.

Simple text paired with engaging full-color photographs of childrens faces will help children recognize the elements of a happy expression.

In this Spanish title, learn causes of extinction and what problems extinction causes for animals, wildlife, and humans alike.