La catastrófica aventura de la ciencia

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.

Ana makes a fatal mistake of unprotected sex and becomes pregnant. She finds herself alone in a circle of hypocrisy and small mindedness.

An award-winning, educator-approved first book on birds. In this simple volume, educator and author Cathryn Sill uses clear, easy-to-understand language to teach children what birds are, what they do, and how they live. Noted wildlife illustrator John Sill provides beautifully detailed, realistic paintings to showcase the birds' diverse and natural worlds, and an afterword provides more details about each bird and inspires further learning.

Con una voz íntima que modula sobresaltos y nebulosas, Ana María Matute nos enfrenta a las experiencias de un grupo de jóvenes, casi niños, a quienes la guerra civil ha despojado de cualquier resto de su anterior universo infantil. El escenario escogido es una Barcelona de soldados y mujeres mal pintadas, de refugiados y mendigos, de gentes ocultas que intentan sobrevivir día a día en medio de los escombros, la luz blanquecina de los reflectores, los bombardeos y la amenazada espera. Pero más allá de un tiempo y un espacio concretos, el propósito de la escritora es presentar a unos...