Los fósiles y las rocas

Students Will Love Learning More About Our Earth, Moon, And Stars In This Title. It Gives Information On The Phases Of The Moon, The Constellations Of Stars That We See In The Night Sky, Comets And Meteors, And What Exactly Happens During A Lunar Eclipse.

Three Quarters Of Our Earth Is Blanketed By Water. How This Water Is Used, From Bathing To Irrigating Crops Is Addressed. That Water Travels In A Never-Ending Pattern Called The Water Cycle. Tips On How To Conserve Our Most Important Natural Resource Are Included.

Introduces readers to amphibians and the concept of classes of animals. Simple text describes the common features and behaviors of amphibians as well as offering many examples of creatures in this group.

Juan Antonio González Iglesias Isabel Pérez Montalbán Álvaro García Luis Muñoz Lorenzo Oliván Rafael-José Díaz Pablo García Casado Andrés Navarro José Manuel Romero Carlos Pardo Joaquín Pérez Azaústre Juan Antonio Bernier Andrés Neuman José Daniel García Javier Vela Elena Medel Balbina Prior Jorge Gimeno Lorenzo Plana José Luis Piquero Javier Rodríguez Marcos Mariano Peyrou José Luis Rey Juan Carlos Abril Antonio Lucas Rafael Espejo Alberto Santamaría Josep Maria Rodríguez Ana Gorría Juan Andrés García Román Fruela Fernández David Leo García

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...

Learn about the different places that people call home--from apartments to cottages and castles to farmhouses. With bright, vivid photos and easy-to-read informational text, this Spanish-translated nonfiction title introduces readers to different cultures' definitions of "home."