¿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.

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.

Discusses the physical characteristics of great white sharks that combine to make them such able predators.

Readers will learn about the important relationship between producers and consumers as well as buyers and sellers and how they all work together to create a healthy economy. This instructive volume defines basic economic concepts like goods and services and explains production with examples of the different types of production. It also covers the primary and secondary industries that produce goods. Concepts such as marketing and advertising are also covered, for a well-rounded view of this fascinating aspect of the economy.

Conviértete en un arqueólogo que explora tumbas para descubrir los secretos del Antiguo Egipto. Descubre datos impresionantes sobre las momias, pirámides y monumentos de esta civilización, levanta las solapas de los cuadernos de campo y examina los deslumbrantes hallazgos que te esperan ocultos en el cajón secreto. Pulsa el cartucho del jeroglífico para abrir el cajón secreto. El cajón secreto contiene pegatinas, maquetas, un juego y mucho más. Disfruta con un juego de mesa de los antiguos egipcios: el senet. Con solapas interactivas, etiquetas y objetos en relieve. Hallazgos claves...

Este poemario es un desahogo de cada suspiro de mi corazón que se complementó con mis dedos bailando entre versos y creando coreografías en poemas. La obra "El desahogo de mis suspiros" está dedicada especialmente a aquellas personas que se enamoraron e ilusionaron, su corazón también suspiró de felicidad, amor, decepción, engaño, tristeza y soledad. En cada poema refleja las emociones e historias que en un tiempo determinado vivimos y que están listas para ser leídas y superadas.