Los estados de la materia — Los gases

El valor y los sueños. Poemas escogidos (1970-2016) es una antología de la obra de Luis Alberto de Cuenca, pero no es una antología más. Tras una introducción general a su poesía, brinda al lector un completo recorrido de más de 150 poemas por los libros «oficiales» del poeta –teniendo en cuenta títulos habitualmente orillados como Los retratos o La mujer y el vampiro– y, además, añade una veintena de textos poco conocidos o inéditos, nunca recopilados en ninguno de sus libros al uso, y otra veintena de traducciones del poeta, tratando con ello de ofrecer la imagen más...

What do people and other living things need to survive? Numerous images with simple labels show children all the things we need to live and be happy, from water and food to shelter and love. An activity asks young readers to describe how they have fun.

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

What is the common good and how does it benefit society? This book looks at the history behind the notion of the common good, touching on ideas from several famous philosophers. Readers will then learn how the common good can be promoted through education and community. Full-color photographs and accessible language help students connect with the text and develop reading comprehension skills. Important elementary subjects from the C3 Framework for Social Studies are discussed in detail throughout this informative book.