Los fósiles y las rocas

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.

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

In this book, children learn how we can tell if something is shiny or dull and which materials have these properties.

W. H. Auden lo consideraba "quizas el mayor genio de todos los tiempos": Lo mismo pensaba Adolf Hitler. En palabras de Nietzsche: "Wagner no es tanto un compositor como una enfermedad."A un siglo de su muerte, Richard Wagner sigue siendo una de las figur

Do you have what it takes to be an athlete? In this Spanish-translated nonfiction book, readers learn about the hard work, athletic training, and dedication that athletes from all sports and levels go through to be healthy and successful. Readers are familiarized with concepts like coordination, endurance, and athletic motivation. Along with stunning photos and charts and riveting facts, this nonfiction title includes an interview with a real-life Olympic athlete and an accessible glossary, index, and list of useful sources. This 6-Pack includes six copies of this title and a lesson plan.