Calendario Maya : el gran ciclo de la Cuenta Larga

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

Describes the physical characteristics of honeybees, where they are found, their behavior and social interactions, and a brief history of beekeeping.

El Tarot del Inconsciente Anónimo es el último libro de Leopoldo María Panero, una visión profunda y tenebrosamente poética del mundo de los Arcanos y los símbolos del inconsciente. Cada Arcano -reproducido a todo color en el interior del libro y editado también aparte como baraja- va acompañado de un Poema, de una Descripción y una Interpretación. Se trata, pues, de un trabajo poético y una guía donde afloran los temas herméticos recurrentes en la obra de Panero: la alquimia, la magia, el psicoanálisis, la homosexualidad, la locura, la muerte...

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...